About all

Red itchy bumps like mosquito bites: Hives (Urticaria): Causes, Treatment and Prevention

Содержание

Are You Allergic to Mosquito Bites?


For most people, mosquitoes are just a summertime nuisance that can turn a barbecue or pool party into a scratch fest. However, some people can have a reaction that’s more severe than a few itchy bumps.

Learn some facts about mosquito bite reactions, as well as signs that you may have a severe allergy to mosquitoes.

A Typical Mosquito Bite Reaction

Like bed bugs, female mosquitoes need to have a blood meal before they can reproduce. When a mosquito bites you, she releases saliva that can cause clotting and scabbing. Many people are allergic to the substances contained in the mosquito’s saliva, which is why they start to itch and develop small welts. So, technically, a lot of people are allergic to mosquito bites, but some people may have more serious reactions than others.

How Long Do Mosquito Bites Itch?

While mosquito bites may seem like they’ll never stop itching, they usually clear up on their own after a few days, according to the Mayo Clinic. Therefore, if you have a bite that lasts longer than that — say a week or two — it’s recommended to go see a qualified medical professional.

Why Do Mosquito Bites Ooze?

When it comes to mosquito bites, oozing isn’t really common. And when a mosquito bite does ooze, it really has nothing to do with the bite, but rather how much you scratch it. Oozing comes from the infection, not really the bite.

What Are the Symptoms of a Severe Mosquito Bite Reaction?

According to the American Academy of Allergy, Asthma & Immunology (AAAAI), some people can have more serious reactions like blistering lesions or large hives accompanied by fever and joint swelling.

Though extremely rare, the AAAAI also states people who are severely allergic to mosquito bites may experience a potentially life-threatening condition called anaphylaxis. This condition is characterized by throat swelling, generalized hives, faintness or wheezing.

How to Treat a Mosquito Bite

First things first when it comes to treatment, the AAAAI says to seek emergency medical treatment if you or someone you’re with develops anaphylactic symptoms. Additionally, the Mayo Clinic states you should contact your doctor if a mosquito bite seems to be associated with more serious warning signs, like fever, headache, body aches and signs of infection.

As for localized mosquito bite reactions, the AAAAI suggests the following treatment:

  • Elevate the affected area and apply ice to reduce swelling and pain.
  • Apply over-the-counter lotion to the affected area.
  • Clean blisters with soap and water without breaking them.
  • If itching persists, try topical steroids or oral antihistamines.
  • Consult a physician if the swelling progresses or the area appears infected.

Chances are good that if you have a severe reaction to mosquito bites, you’d already know it. If you’re concerned about a reaction to a mosquito bite, you should contact a medical professional.

Why Do Mosquitoes Feed on Your Blood?

 

Ways to Help Prevent Mosquito Bites

Fortunately, most reactions to mosquito bites are mild. Still, mosquitoes and their bites can be a big nuisance. There are some steps that you can take around your home to help you reduce the mosquito population so you can enjoy being outdoors with your family. These steps include:

  • Getting rid of standing water
  • Keeping gutters and drains clear
  • Maintaining a well-kept yard
  • Using a mosquito repellent recommended by the Centers for Disease Control and Prevention

Mosquitoes can be tough to control. They breed rapidly, with groups of mosquitoes producing up to 3,000 eggs in a few weeks. Do-it-yourself methods of control can be costly and ineffective. Though they can sometimes help reduce adult mosquito populations, they often miss the egg population, so the problem isn’t actually addressed.

If you’ve noticed mosquitoes in your yard, you may need to consult a professional to help solve the problem. The mosquito control professionals at Terminix® can inspect your yard for conditions that are conducive to mosquito populations and recommend treatment methods. Contact Terminix today to learn more about our mosquito service.

Learn more on how you can prepare for mosquito season.

 



GET MOSQUITO CONTROL >

 

Papular urticaria | DermNet NZ

Author: Dr Amanda Oakley, Dermatologist, Hamilton, New Zealand, 1997. Update: Dr Oakley and Dr Karen Koch, Consultant Dermatologist, WITS Donald Gordon Mediclinic, Johannesburg, South Africa. March 2018. DermNet NZ revision August 2021.


What is papular urticaria?

Papular urticaria is a papulovesicular reaction to insect and arachnid bites more common in children than in adults. It presents during the summer or autumn months. It is also called a persistent insect bite reaction.

Papular urticaria

Who gets papular urticaria?

Papular urticaria most often occurs in children. This is because desensitisation to insect bites has not yet developed.

It may also occur in adults, especially in travellers to new environments. 

What is the cause of papular urticaria?

Papular urticaria is thought to be an immunological reaction to insect bites. The reaction settles after a few months or years, as the person becomes desensitised to the bites. The initial bite is rarely noticed.

Fleas and mites that live on cats and dogs are most often responsible.

  • Fleas are easily seen with the naked eye but can be difficult to get rid of. Fleas produce many eggs, which become larvae and pupae. The average cat has only twenty fleas, but may be surrounded by 20,000 of them.
  • Mites are too small to see easily but are an equally common cause of papular urticaria.
  • Animals are repeatedly infested and must be treated every few weeks with a leave-on insecticide.  

Not everyone with papular urticaria has pets, and it can sometimes be difficult to work out what a patient is reacting to. There have been reports of reactions to mosquitoes, gnats, bird mites, carpet beetles, caterpillars, and other insects.

What are the clinical features of papular urticaria?

Papular urticaria presents with clusters of itchy red bumps (papules) without systemic symptoms.

  • Most often on legs and other uncovered areas such as forearms and face
  • Sometimes scattered in small groups all over the body
  • Appear every few days during the summer or autumn months
  • Range from 0. 2–2 cm in diameter
  • Each papule has a central punctum
  • May present as crops of fluid-filled blisters
  • New lesions develop just as old ones start to clear
  • A new bite may provoke reactivation of old ones

The spots remain for days to weeks and can leave postinflammatory pigmentation or hypopigmented scars, especially if they have been scratched deeply.

Papular urticaria on the legs

What are the complications of papular urticaria?

What is the differential diagnosis of papular urticaria?

How is papular urticaria diagnosed?

Papular urticaria is usually a clinical diagnosis. A biopsy may support the diagnosis, as insect bites have a characteristic microscopic appearance.

The histopathology of papular urticaria includes mild dermal oedema, extravasation of erythrocytes, interstitial eosinophils, and exocytosis of lymphocytes. Vasculitic features may be noted.

What is the treatment for papular urticaria?

Preventative measures

  • Wear protective clothing
  • Insect repellents can be applied to exposed skin to prevent insect bites when outdoors
  • Insecticides can rid the house, workplace, or school, of insects. Obtain professional help from a pest control company if necessary.
  • Seek veterinary advice regarding infested animal(s)
    • Keep pets outside
    • Use a pyrethroid kennel and carpet spray followed by vacuuming
    • Apply long-lasting insect growth regulator to the neck of cats and dogs

Symptomatic measures

What is the outcome of papular urticaria?

Papular urticaria is normally self-limiting. The immunological basis of this reaction means that it may take months or even years for children to become desensitised to the offending insect. Papular urticaria may clear up on holiday or after moving house.

Occasionally the eruption can clear for years and then recur unexpectedly.

 

References

  • Cuéllar A, Rodríguez A, Halpert E, et al. Specific pattern of flea antigen recognition by IgG subclass and IgE during the progression of papular urticaria caused by flea bite. Allergol Immunopathol (Madr). 2010;38(4):197–202. doi:10.1016/j.aller.2009.09.012 Journal 
  • Demain JG. Papular urticaria and things that bite in the night. Curr Allergy Asthma Rep. 2003;3(4):291–303. PubMed.
  • Hernandez RG, Cohen BA. Insect bite-induced hypersensitivity and the SCRATCH principles: a new approach to papular urticaria. Pediatrics. 2006;118(1):e189–96. PubMed.
  • Kamath S, Kenner-Bell B. Infestations, bites, and insect repellents. Pediatr Ann. 2020;49(3):e124-31. doi:10.3928/19382359-20200214-01 PubMed 
  • Singh S, Mann BK. Insect bite reactions. Indian J Dermatol Venereol Leprol. 2013;79(2):151-64. doi:10.4103/0378-6323.107629 Journal 
  • Steen CJ, Carbonaro PA, Schwartz RA. Arthropods in dermatology. J Am Acad Dermatol. 2004;50(6):819–42, quiz 42-4. PubMed.
  • Stibich AS, Schwartz RA. Papular urticaria. Cutis. 2001;68(2):89–91. PubMed.

On DermNet NZ

Other websites

Books about skin diseases

Mosquito bite reactions | AAAAI

While mosquitoes can carry blood-borne diseases like malaria, West Nile encephalitis and dengue fever, it is the aggravating bite that gives them their notoriety.

Only female mosquitoes bite. Heat, light, sweat, body odor, lactic acid and carbon dioxide attract the female mosquito to skin. She inserts the tip of her mouth into a tiny blood vessel, injects her saliva into your bloodstream and then sucks your blood.

Contact must last at least six seconds in order for a reaction to occur. Chemicals in mosquito saliva prevent blood from clotting and evoke a response that causes localized redness, swelling and itching.

A mosquito bite can cause a variety of reactions. People who have never been bitten before (primarily young children) may not react at all. Thereafter, most of us develop a tiny, itchy red bump that appears hours to days after they have been bitten and may last a few days.

However, some people have more serious reactions like blistering lesions or larger hives accompanied by fever and joint swelling. At its worst, a mosquito bite can cause anaphylaxis (an-a-fi-LAK-sis), a potentially life-threatening condition characterized by throat swelling, generalized hives, faintness or wheezing. This reaction is rarely caused by mosquitoes and is more commonly associated with other stinging insects. If you have experienced anaphylaxis, consider consulting an allergy/immunology specialist, who can help determine the cause. Carry autoinjectable epinephrine if you have been diagnosed with stinging insect anaphylaxis.

Treatment Tips

If you develop anaphylactic symptoms, seek emergency medical treatment.  

If your reaction is localized, try these treatments to relieve symptoms:

•    Elevate the affected area and apply ice to reduce swelling and pain.

•    Apply over-the-counter lotion to the affected area.

•    Clean blisters with soap and water without breaking them.

•    If itching persists, try topical steroids or oral antihistamines.

•    Consult a physician if the swelling progresses or the area appears infected.

Avoiding Mosquitoes

These pests may seem impossible to avoid, but there are steps you can take to reduce your chance of a mosquito bite.

Stay indoors as much as possible from dusk to dawn – peak mosquito time.

During the day, avoid standing near calm, shaded, humid areas and avoid pools of standing water. These are popular places for mosquitoes to hang out.

What you wear can attract mosquitoes. Avoid bright clothing and heavy perfumes. Wear clothing that covers most of your skin to minimize the chance for mosquitoes to bite.

Use insect repellents containing DEET. Read the label of your repellent carefully. DEET will often be listed under the active ingredients as N, N-diethyl-meta-toluamide. Products with 6 to 25% DEET should provide two to six hours of protection. Repellents can cause side effects, including eye irritation, dry skin, rash and possible allergic reaction. Before applying to your entire body, test the repellent on a small area of your skin. Use the lowest concentration that is effective for you and reapply as needed.

Find out more about stinging insect allergies.

This article has been reviewed by Andrew Moore, MD, FAAAAI

Reviewed: 9/28/20

What cause hives and red bumps to appear on your skin?

“Hives is caused by the release of histamine from skin cells called mast cells,” explains Dr Justine Kluk of the British Association of Dermatologists.

These chemicals cause fluid to leak from tiny blood vessels just under the surface of your skin, and it’s this fluid that forms those bumpy weals on the skin. Meanwhile, histamine chemicals also cause your blood vessels to widen, or dilate, which makes those red or white bumps flare up.

“It typically causes itchy pink or white raised areas of skin, which can look like nettle rash. These areas, known as weals, can appear anywhere on the body and may move from one site on the skin to another over a 24-hour period,” Kluk says.

So what triggers the release of histamines? Known triggers include physical stimuli, coming into contact with an allergen, skin contact with certain substances, and viral infections like a cold or flu. However, Kluk explains: “In people with the most common type of hives – spontaneous hives – a trigger is not normally identified.”

Physical triggers

Possible physical triggers include heat, cold, sweat, physical pressure, or tight clothes, as well as specific foods and alcohol. Food allergies, reactions to bites or stings, and allergies to certain medications can also all act as triggers for hives, while some people develop the rash after coming into direct skin contact with certain cosmetics, perfumes, plants, latex, or chemicals.

If you’re suffering from hives, Kluk also recommends avoiding the medicines codeine, aspirin, ibuprofen and naproxen, which, she says “can increase the release of histamine from mast cells, thus acting as a driver for the hives”.

Stress has also been shown to lower the threshold for many skin conditions to flare up, although Kluk says she wouldn’t expect it to be the only reason for hives appearing.

Chronic hives

In chronic cases, where the rash is persistent, Kluk says: “You may have an underlying medical condition that is driving the process, and this would typically be investigated through blood testing.”

This type of urticaria, she adds, may also be triggered by factors in the blood, such as antibodies which work against the mast cells.

“If this is suspected, a dermatologist or allergist will include this in their panel of blood tests.”

Chronic hives is uncommon, however, and is defined as hives lasting for more than six weeks. Acute (short-lived) hives develops suddenly and typically only lasts 24-48 hours. In some cases, the rash may only last a few hours, but any episode of hives lasting less than six weeks is considered ‘acute’, even if you suffer from recurring flare-ups.

Treating hives

When it comes to tackling hives, Kluk says: “Treatments can be used to suppress the symptoms, rather than curing the condition. The most common treatment is antihistamine tablets, which block the effect of histamine and reduce the itch and rash.”

If you experience recurring hives regularly, she explains, your doctor will likely recommend that you take an antihistamine daily to keep the symptoms at bay.

“Other treatment options for hives may include oral steroids,” Kluk adds. “And, in people with severe chronic spontaneous hives, a new biological treatment injection called omalizumab has been made available in specialist clinics.”

Avoiding triggers

If you know what tends to trigger your hives, the best course of action is obviously to steer clear as much as possible. However, as Kluk points out: “Triggers vary between patients, so there are no set rules for how to avoid triggering hives.”

Keeping a symptom diary or going for an allergy test can be useful for working out if there’s a specific trigger – for example, if you’re more likely to develop hives after eating a certain food or coming into contact with a particular substance. You can then try avoiding or cutting these out to see if it helps stave off the rash.

Insect venom allergies: Overview – InformedHealth.org

Introduction

We all get stung or bitten by insects every now and then – and most people end up with a small, red, itchy bump as a result. But those who are allergic to insect stings or bites may react to them strongly, and the reaction might even be life-threatening in rare cases.

In insect venom allergies, the body’s immune system attacks certain parts of proteins that enter the body when the insect bites or stings. It’s not known why that happens. But this allergy doesn’t develop after the first sting or bite: Sometimes people get stung or bitten over many years without having an unusual reaction. Over time, though, their bodies become more sensitive to the venom in the sting or bite (sensitization) and they then suddenly have an allergic reaction to it.

Symptoms

Allergic reactions to insect venom cause the skin around the bite or sting to become very swollen. The swelling often has a diameter of more than 10 cm and lasts longer than 24 hours. It usually hurts, burns or itches a lot.

Stings inside the mouth or throat can cause the airways to become swollen, making it harder to breathe. This is particularly dangerous for people who have an allergy. But the swelling is rarely bad enough to lead to suffocation.

If the symptoms affect the entire body, it’s known as an anaphylactic reaction. This reaction may be mild, but it can also be life-threatening. The milder reactions include hives (a raised skin rash – also known as nettle rash), itching all over the body, dizziness, stomach and bowel problems, and nausea. People may also generally feel weak, have a swollen face or hands, or have problems swallowing. Severe anaphylactic shock leads to breathing problems, a sudden drop in blood pressure, loss of consciousness or even cardiac arrest (where the heart stops beating).

The symptoms usually occur soon after the person is bitten or stung. In rare cases, though, they may only occur a few hours later. When someone has an anaphylactic reaction, the symptoms might go away at first, but then return within eight hours.

Causes and risk factors

Some people are generally more likely to have allergies. But it isn’t known why some people have an insect venom allergy and others don’t.

Bee sting allergies and wasp sting allergies are the most common allergic reactions to insect venom. Bee stings are more likely to lead to serious allergic reactions than wasp stings are. Allergic reactions to hornet stings (usually in people who are allergic to wasp stings) or bumble bee stings (usually in people who are allergic to bee stings) are much less common. Mosquito bites, horsefly bites and ant bites hardly ever lead to allergic reactions in Germany and similar countries, apart from near to the area of skin that was bitten.

Knowing the difference between the behavior of bees and wasps helps to avoid them and react properly if you get stung. And knowing which insect stung you can be important for the diagnosis:

View in own window

Bees Wasps
  • don’t tend to be aggressive – unless they feel threatened.

  • are active between the spring and late summer.

  • lose their stinger when they sting someone; it usually gets stuck in the skin.

  • are typically found flying close to beehives and flowers.

  • tend to be more aggressive – they are more likely to feel threatened by movements and attempts to blow them away.

  • are mainly active between summer and late fall.

  • keep their stinger after stinging someone.

  • often fly around food and rubbish.

Prevalence

About 2% of the population react to insect bites and stings with symptoms that affect more than just the surrounding area of skin.

Some people are stung or bitten more often than others, and are more likely to become allergic to the venom as a result. These include beekeepers and people who live with them. Other people who are at higher risk include those who work in bakeries, sell fruit or work on a farm.

Effects

Generally speaking, allergic reactions to insect bites or stings don’t have any lasting harmful effects.

About 20 deaths due to bee sting, wasp sting, or hornet sting allergies are reported every year in Germany. The actual number is probably a little higher because allergic reactions aren’t always recognized as the cause of death.

Diagnosis

Before performing a physical examination, the doctor will first ask about the exact symptoms. It isn’t always easy to tell the difference between wasp stings and bee stings, so it’s important to describe where you were when you were stung, and how the insect was behaving at the time.

Skin tests and blood tests are only done if the allergy affects more than just the local area of skin. These tests check whether the immune system overreacts to certain triggers.

In a skin prick test, solutions of potential food allergens are put on the forearm with enough space between them and the skin is gently pricked so they can get into the skin. The skin is then observed to see whether it turns red or itchy and bumpy. In the blood test, the doctor checks whether a blood sample contains antibodies to insect venom.

In other allergies, a provocation test is sometimes used as well. That involves exposing the body to increasing doses of the suspected trigger in order to see whether there’s an allergic reaction. But this test can lead to severe reactions in people with insect venom allergies, so it is only done in exceptional cases and in specialized centers.

Prevention

The main way to prevent allergic reactions is to avoid being bitten or stung by the insect. To lower the risk, the following strategies are recommended:

  • Be careful when eating outdoors, and clear the table as soon as you have finished eating. Avoid eating outdoors if there are a lot of insects flying about.

  • Don’t spend time near rubbish.

  • Cover up your drinks and use a straw.

  • Clean your mouth and hands after eating.

  • Don’t swat at wasps or bees – they usually sting to defend themselves. Stay calm and move slowly.

  • Cover up your skin with clothing.

  • Keep windows closed during the day.

  • Stay away from beehives and wasps’ nests.

Treatment

If someone is stung or bitten by the insect that they are allergic to, they will usually first take antihistamines in the form of a tablet. Depending on how severe the skin reaction is, a steroid medication may be used too. If more serious symptoms develop – such as breathing problems, nausea, circulation problems or swelling in the mouth and throat – adrenaline must be injected as soon as possible. If anaphylactic shock occurs, call for emergency medical services immediately (112 in Germany and many other European countries or 911 in the U.S.)

People who tend to have more severe allergic reactions are often advised to have a treatment known as allergen-specific immunotherapy (also known as desensitization). After having this treatment, the allergic reaction to the insect sting is usually much weaker over the long term, or the allergy may even go away completely.

People who have a confirmed insect venom allergy are advised to carry a medical ID card or bracelet on them at all times, to let people know what they are allergic to in an emergency.

Further information

When people are ill or need medical advice, they usually go to see their family doctor first. Read about how to find the right doctor, how to prepare for the appointment and what to remember.

Sources

  • IQWiG health information is written with the aim of helping
    people understand the advantages and disadvantages of the main treatment options and health
    care services.

    Because IQWiG is a German institute, some of the information provided here is specific to the
    German health care system. The suitability of any of the described options in an individual
    case can be determined by talking to a doctor. We do not offer individual consultations.

    Our information is based on the results of good-quality studies. It is written by a
    team of
    health care professionals, scientists and editors, and reviewed by external experts. You can
    find a detailed description of how our health information is produced and updated in
    our methods.

Itchy Bumps That Look Like Mosquito Bites But Aren’t

  • Written By Dan Edwards on September 8, 2018
    Last Updated: December 10, 2020

We’re all familiar with mosquito bites, but are there other insects that can create similar effects and discomfort?

There are many insects that bite. Some do it to feed while others will only choose to do so when feeling threatened. One thing they have in common, though, is that they usually leave an annoying, itchy mark.

Let’s take a look at some other insects that can leave irritating bites.

What Other Insects Can Cause Itchy Bumps on the Skin?

Unfortunately for us, many insects like the taste of our blood. This means, that during the warmer months of the year in particular, we might experience many bites, along with the subsequent discomfort. The following insects are all guilty of leaving us marked in a similar way mosquitoes do.

Bed Bugs

Bed bugs are very small insects. They have an oval, flat shape and are no bigger than 0.25 inches long. Bed bugs are a reddish-brown color, and their abdomen usually expands somewhat after feeding. These little critters can’t fly so they are entirely dependent on the movement of their host to get around.

CC Image courtesy of British Pest Control Association

Don’t let their cute name fool you, bed bugs don’t just like to live in your mattress. They can also be found on other furniture, such as couches, and in places like thick carpets.

Once you’re asleep, or not noticing, bed bugs will come out and bite. Like mosquitoes, bed bugs feed on blood from humans and animals. They leave red, itchy bumps that can be quite uncomfortable.

Most people don’t even realize they have bed bugs. Since they bite while you’re sleeping, you’re left with a few questions the next morning as to what bit you—and why it’s so itchy.

What Do Bed Bug Bites Look Like?

Bed bug bites are similar to mosquito bites. They are red and about the same size of a medium-sized mosquito bite. The tell-tale sign that usually gives bed bugs away is the pattern of the bites.

Bed bugs often bite as they move around, feeding a little from each site. You might wake up with something akin to lines running all over your back. You may also notice dark spots on your bedding or furniture, these are the bugs’ droppings.

Some people may not experience any side effects from bed bugs while others are not so lucky. People with severe reactions can find themselves with rashes, blisters or hives. The bites could also darken in color and become more swollen.

Bites usually occur on exposed skin, typically the arms, legs, face, and neck. Although,  the back is also easily exposed, especially if you sleep wearing loose clothing.

The effects of bed bug bites don’t always appear immediately. In fact, it can take several days before you see or feel any effects. Some people, however, might experience an immediate burning sensation around the bite site.

Bed bugs aren’t all bad though. They don’t spread disease, and they’re kind enough to inject a small amount of anesthesia into each bite so we won’t feel it.

Fleas

Fleas are tiny, persistent, annoying insects. People often associate fleas solely with pet owners, but that’s not always the case.

These pesky pests can also live host-free in your yard. Often, they will make their way into your home with the help of neighboring pets or wild animals, such as foxes.

Adult Flea

Fleas reproduce extremely fast and lay a lot of eggs in one go. These eggs then stay protected until triggered by the presence of a host. There have often been cases of people moving into a new home, to quickly end up with an infestation of unwanted fleas.

Tiny, and almost impossible to see with the naked eye, fleas are remarkable jumpers and move very quickly. For this reason, it can be hard to know when they are present in our homes and on our pets, until they bite.

A good thing about fleas is that they don’t like human blood. They prefer our furry family members. However, that doesn’t stop them from trying. Occasionally, they will jump on to us for a quick taste. Because they can’t live on humans, though, they leave just as swiftly.

What Do Flea Bites Look Like?

Flea bites are relatively easy to recognize, and are usually visibly different to mosquito bites. They appear as small, red bumps with a type of ring, or halo, around the center. Unlike mosquito bites, flea bites are generally uniform in size and they aren’t usually very big.

Like bed bugs, fleas also often leave bites in a pattern. Usually, these bites are in small groups of three or four. They can also occur in a straight line.

Flea bites often show up around the lower legs, ankles, and feet. This is because fleas jump to us from their favorite hosts, our pets, which often stand at around that height. Fleas sometimes hide in carpets or rugs too, so your ankles and feet are within reach as you walk past. If you lie down on the rug, they can bite you almost any place.

Flea Bites Around The Ankle

Flea bites can be quite painful. The area surrounding the bite becomes red and sore and you may experience a burning sensation. Some people will even develop a rash around the bite site.

Fleas aren’t dangerous to humans, but they do pose a risk to your pets. Fleas may also carry diseases. Young pets, such as kittens, can experience anemia and severe blood loss if too many fleas are living on them.

Sand Flies

There are more than 120,000 species of fly in the world. Some of these bite, while others don’t. The sand fly is one of the most common biting flies that inhabit the southern states of America.

In many ways, sand flies are quite similar to mosquitoes. For example, sand flies like warm, humid environments and their favorite breeding ground is a place with lots of moisture, such as moss.

Another thing that sand flies and mosquitoes have in common is the fact that the adults feed on nectar and plant sap. Only adult females feed on blood from a host.

What Do Sand Fly Bites Look Like?

Sand fly bites are red and can be very painful. Blisters may also be present around the bite area. If bites, or the resulting blisters, become infected, this can cause severe inflammation and result in dermatitis.

Unfortunately, these flies also carry diseases, including leishmaniasis, which can pass to humans. This disease is not as common in the United States as it is in some other parts of the world. Most people who contract the disease get it while traveling overseas.

While there is no vaccination available, it may not be completely necessary; leishmaniasis is not a life-threatening disease. The condition will cause skin sores or rashes that can last for weeks, or even months. These unsightly and annoying skin sores will usually clear up on their own, however.

Chiggers

Their name might make them sound like a peaceful bug, but these larvae are no fun at all. Chiggers are from the arachnid family, they resemble ticks, but have a bright red color. Chiggers are also known as red bugs or red mites.

Chigger habitats include tall grasses, forests, berry patches, and lake areas. They love warm summers but can also be found during the spring and fall if the temperature is still warm.

As the temperature drops below 60 degrees, chiggers will become sluggish and inactive. When winter approaches and the temperature reaches 42 degrees and below, they will die.

Unlike other biting insects, chiggers don’t feed on blood. They prefer bodily fluids. Their bite contains an enzyme which breaks down skin cells and creates a liquid. The host’s affected skin cells will then harden, creating a sort of tube or straw which the bug will feed from.

Chigger larvae act like ticks in that they will attach themselves to a host and feed for up to four days at a time.

What Do Chigger Bites Look Like?

People who have been bitten by chiggers are left with a bright red bump. The bumps will continue to grow even after the chigger, or more likely, chiggers, have departed.

Victims of chiggers don’t usually feel the bite or latching on of these critters. Some people don’t even notice they have been a host until the pests have gone.

It is only the larvae which bite humans. These tiny larvae are no bigger than 0.007 inches long. They are usually found hanging on to tall grass or vegetation. From there, they jump to any victim who happens to walk by.

Chiggers have claws to help them grab on to the host. They like to stay in moist areas of the body, such as the armpits, behind the knees, groins, and underneath skin folds.

The most common symptom is itching, and lots of it. People have reported feeling an immense desire to scratch the affected area. An unfortunate place chiggers like to attach themselves to is the groin area of men. A bite here can cause unpleasant side effects, such as extreme itchiness and even painful urination.  

Summary

Many insects and bugs will bite humans. Some will cause a great deal of discomfort and even pain, others you won’t notice until after you’ve been bitten. Nevertheless, it’s crucial to not give in to the temptation to scratch.

Scratching can cause further inflammation and could even leave you with scars. The best thing to do after a suspected insect bite is to wash the area with cold water and soap. Applying something cold should also help ease any discomfort.

Common Bug Bites and When to See a Doctor

Bugs come out in summertime, and from burrowing ticks to bee stings, they can mean problems for some people. Even the common mosquito bite can cause allergic-type reactions in some children, with red raised skin and other symptoms.

“They can be alarming, especially if you have a child who has a bite above their eyebrow, and it looks like they’ve been punched in the eye; it’s swollen shut,” says Darrell Vlachos, D.O., Beaumont emergency physician.

Here are some tips about common bug bites in Michigan and when they require medical attention.


MOSQUITOS

Mosquito bites are itchy bumps that result after mosquitos puncture your skin to feed on your blood. In children, it’s not uncommon for them to cause large areas of swelling and redness.

In more serious but rare cases, mosquitos can carry viruses or illnesses, such as the West Nile virus.

How to prevent them

Minimize exposure by avoiding being outside between dusk and dawn, using insect repellent, covering exposed skin or burning citronella candles when outdoors. Also, get rid of any standing water in your yard to eliminate breeding areas.

When to see a doctor

Most local reactions to mosquito bites don’t require any medical attention. However, constant itching and scratching can cause a secondary skin infection to develop. Syptoms may include persistent and even spreading redness, warmth, the development of abscess and possibly fever. If any of this happens, you should seek medical care.


TICKS

Another insect to worry about is ticks, which like to burrow themselves under the skin and can cause reactions such as tick paralysis in some people — or the dreaded Lyme disease, which is spread by infected blacklegged ticks (also called deer ticks).

If you’ve been traipsing through an area with long grasses or thick undergrowth, carefully inspect your body for ticks embedding themselves into your skin while changing or before taking a shower. It takes at least a day before infected ticks can transmit the bacteria responsible for Lyme disease their human host, so it’s important to find them early. The disease usually manifests itself via a rash that looks like a bulls-eye.

How to prevent them

The Centers for Disease Control and Prevention recommends using insect repellants containing DEET or other chemicals, and avoiding tick-prone areas.

How to treat it

If you find one, use tweezers to carefully remove it, taking care to avoid crushing its body, then cleanse the wound area with rubbing alcohol or soap and water. Save the tick in a plastic bag or container so it can be tested for disease, if necessary.

When to see a doctor

If you don’t have any tweezers, or cannot reach the tick, go to the nearest health care facility where medical staff can remove it. If you develop flu-like illness, sensitivity to light and or rash after noting a tick bite, you should also seek medical attention, Dr. Vlachos says.


INSECT STINGS

Bees, wasps, yellow jackets and hornets belong to a class of insects called Hymenoptera. Usually, their stings cause only minor discomfort, with some swelling, redness, itching and warmth.

The biggest risks are from allergic reactions and infection.

How to treat it

Remove the stinger by scraping the site gently with a blunt-edged object like a credit card or butter knife. Wash the area with soap and water, and apply a cold or ice pack to help reduce pain and swelling.

When to see a doctor

You should seek emergency care immediately if your child is stung in the mouth, nose or throat.

Also, allergic reactions to insect stings require immediate medical attention. Symptoms may include the following:

  • hives, itching and swelling in areas other than the sting site
  • abdominal cramping, vomiting, intense nausea or diarrhea
  • tightness in the chest and difficulty breathing
  • hoarse voice or swelling of the tongue or throat, or difficulty swallowing

An even more severe allergic reaction known as anaphylaxis can occur within minutes after the sting and may be life-threatening. A dose of epinephrine (adrenaline), typically administered in an auto-injector, and immediate medical attention are required. Symptoms may include:

  • dizziness or a sharp drop in blood pressure
  • loss of consciousness, or even cardiac arrest

People who have experienced an allergic reaction to an insect sting have a 60 percent chance of a similar or worse reaction if stung again. So it’s imperative to have a bee sting or anaphylaxis kit prescribed by your doctor and readily available.

Bumps similar to mosquito bites – Question to the dermatologist

If you did not find the necessary information among the answers to this question, or if your problem is slightly different from the one presented, try asking an additional question to the doctor on the same page if it is related to the main question. You can also ask a new question, and after a while our doctors will answer it. It’s free. You can also search for the information you need in similar questions on this page or through the site search page.We will be very grateful if you recommend us to your friends on social networks.

Medportal 03online.com carries out medical consultations in the mode of correspondence with doctors on the website. Here you get answers from real practitioners in their field. At the moment, on the site you can get advice in 71 areas: a COVID-19 specialist, an allergist, an anesthesiologist-resuscitator, a venereologist, a gastroenterologist, a hematologist, a geneticist, a hepatologist, a geriatrician, a gynecologist, a gynecologist-endocrinologist, a homeopathologist, a pediatrician, a pediatrician , pediatric dermatologist, pediatric infectious disease specialist, pediatric cardiologist, pediatric ENT, pediatric neurologist, pediatric nephrologist, pediatric ophthalmologist, child psychologist, pediatric pulmonologist, pediatric rheumatologist, pediatric urologist, pediatric surgeon, pediatric endocrinologist, defectologist, nutritionist, nutritionist clinical psychologist, cosmetologist, speech therapist, ENT specialist, mammologist, medical lawyer, narcologist, neuropathologist, neurosurgeon, neonatologist, nephrologist, nutritionist, oncologist, urologist oncologist, orthopedist-traumatologist, psychologist, parasitologist, proctiatrist, pediatrician , rheumatologist, radiologist, reproductologist, sexologist-andrologist, dentist, trichologist, urologist, pharmacist, physiotherapist, phytotherapist, phlebologist, phthisiatrician, surgeon, endocrinologist.

We answer 97.47% of questions .

Stay with us and be healthy!

Cutaneous manifestations in coronavirus

05/13/2020

The skin best reflects the state of the processes occurring in the human body, and is a kind of indicator of the state of the body. In many diseases of the internal organs, there are characteristic skin manifestations. Rashes can be a symptom of infection with viruses, fungi, bacteria and allergies.The rash can appear all over the body, sometimes it brings severe discomfort (itching, pain, burning, constriction, tingling), sometimes it goes away painlessly. The rashes differ in the place of localization, shade, speed of appearance, filling, sensations, texture, stages of development, etc. Some types of skin rash are nonspecific and can appear for a variety of reasons. Only a specialist can accurately diagnose by taking anamnesis and carrying out the necessary laboratory and instrumental studies.

Many viral infections have one or another skin manifestation, for example, measles, chickenpox, and others. As a rule, they do not require any additional therapy. That is, the viral infection ends and the symptoms disappear by themselves. The coronavirus is no exception.

Symptoms of a new coronavirus infection can occur in almost the entire body, including on the skin. The latest data show that the coronavirus on human skin is manifested by rashes, redness, pseudo-frostbite.A rash on the skin in the presence of this infection can appear in people of any age, but more often young patients encounter a similar phenomenon.

A skin rash and manifestations of a reticular vascular pattern on the surface of the skin have been called possible symptoms of COVID-19. This was told by the head of the department of pulmonology at Sechenov University, professor, pulmonologist Sergei Avdeev, reports “Moskovsky Komsomolets”. The chief physician of the Kommunarka hospital, Denis Protsenko, spoke about a little-known symptom that most patients have – a rash on the arms and abdomen.

French doctors have named new symptoms of the coronavirus, which are associated with skin diseases. Le Figaro writes about this with reference to a study by the National Union of Dermatologists-Venereologists (SNDV).

Doctors say that in some cases, those infected with the coronavirus have complained of the sudden appearance of painful redness, hives and pseudo-frostbite. Such conclusions were made on the basis of a survey of about 400 doctors who dealt with patients with coronavirus.Symptoms, as a rule, are disguised as usual erythema (red spots), under vascular changes, there were also reports of a reticular pattern that stimulates lesions on the skin, of a bright red and cyanotic color of congestion of fingers and toes. These are all the symptoms that accompany any viral infection.

Spanish researchers from the Academy of Dermatology have divided the cutaneous manifestations of coronavirus infection into five types.

The data, which the scientists collected for two weeks, studying 375 patients, is published in the British Journal of Dermatology.Each case is illustrated with photographs.

In the most common group (47% of cases), there was a maculopapular rash in the form of small red papules. Also, these patients may have purpura. The rash persisted for 8.6 days and appeared in more critically ill patients. In 57% of cases, the rash was itchy.

Then there are patients with redness on the skin (19%), reminiscent of frostbite, as well as blisters and abscesses on the fingers and toes.They persisted for 12.7 days and were recorded mainly among younger patients with a mild course of the disease.

The third group includes patients with urticarial eruptions similar to urticaria (19%). They appeared on the trunk and sometimes on the palms of seriously ill patients and in 92% of cases caused itching.

Some patients (9%) had a vesicular (blistering) rash that resembled small blisters. It appeared on the trunk and caused itching in 68% of cases.These included middle-aged patients with severe manifestations of the disease. The rash persisted for about ten days.

The smallest group (6%) had livedo, a phenomenon similar to a mesh pattern on the skin, as well as necrosis, that is, premature death of skin tissue. A similar manifestation was in elderly patients with a severe course of the disease.

If a rash of unknown origin develops, consult a doctor promptly. Delay can lead not only to complications and to improper self-selection of treatment, but also to the infection of family members and friends if the disease turns out to be contagious.

According to the BUZ RA “Dermatovenerologic dispensary”

Hits: 67008 90 000 When rashes and itches, or What is urticaria

When rashes and itches, or What is urticaria

18.04.2018 11:48

Urticaria is an acute allergic reaction of the body to an irritant, which is characterized by the appearance of itchy blisters on the body.

Neither an insect bite nor a nettle burn (thanks to which, by the way, urticaria got its name – for the similarity of the reaction manifestation) have nothing to do with an allergic disease.If a blister occurs only at the site of a bite or contact with a plant, this is a local toxic skin reaction to an irritant. It goes away rather quickly by itself or with the help of local therapy (soda lotions or antiallergic ointments).

Acute urticaria, on the other hand, is characterized by a generalized reaction, i.e. after contact with an allergen, itchy blisters appear all over the body.

There are 2 main features that characterize acute urticaria:

  1. As a rule, urticaria elements appear on the skin in the first 15-20 minutes after contact with an allergen.But in some cases, the reaction can come instantly and lead to anaphylactic shock. Fortunately, such cases are extremely rare. Sometimes the rash does not appear generalized (not all over the body), but locally. The typical localization of blisters is the trunk, face, less often arms, legs. In some cases, mucous membranes also “get”: watery blisters appear on the lips, tongue, soft palate and larynx. The rashes are grouped together and are prone to merging. There is a concept as “giant urticaria”: against the background of acute urticaria, a person has edema of the eyelids, lips, tongue, larynx.This reaction has another, more familiar name in everyday life – Quincke’s edema.
  2. Along with blisters, itching is a key hallmark of urticaria. It can be so intolerable that it literally deprives a person of peace. Even if an acute attack of urticaria quickly passes or is successfully removed with medications and not a trace remains of the blisters, deep combs remind of the shock experienced for a long time.

Since urticaria is an allergic reaction, anything can provoke it.But in the vast majority of cases, the 3 most common irritants are the cause.

Food allergens

The largest group of allergic provocateurs. The most allergenic effect among food products are: milk, eggs, nuts, tomatoes, smoked meats, seafood, chocolate, legumes, citrus fruits.

Medicines

Approximately every 5th victim of acute urticaria suffers from this group of provoking factors.Among them there is also a rating of leaders: antibiotics, non-steroidal anti-inflammatory drugs (such as ibuprofen), iodine contrast agents (i.e. preparations containing iodine), vitamins (especially group B).

Insect bites

The greatest threat in the development of an allergic reaction is posed by the venom of bees, wasps and hornets. Against their background, mosquitoes are the most harmless insects. A mosquito bite in extremely rare cases leads to hives.

If the attack of acute urticaria has not passed you, the most important rule is: do not panic! In the overwhelming majority of cases, time suffers to wait for the arrival of the ambulance team or to get to the nearest clinic or hospital and get adequate help.

To reduce discomfort, before visiting a doctor, you can and should use the rules of first aid for urticaria: take an antihistamine.

If the required tablet was not at hand, then in case of food allergies, you need to take activated charcoal at the rate of 1 tablet per 10 kg of weight, drink as much liquid as possible (preference for clean drinking water). When an insect bites, cool the bite site (apply ice) to reduce the absorption of the allergen, apply a tourniquet above the bite site, loosening it a little every 5 minutes.

In case of an allergic reaction after taking a medicine by mouth, immediately call an ambulance. Try to induce vomiting.

Do not hesitate if urticaria manifests itself in the face area, symptoms from the respiratory system begin to appear: cough, shortness of breath, hoarseness. These symptoms are a reason for an urgent call for an ambulance team.

Whatever the course of the allergy, you must definitely seek medical help.

“Healthy people”)


90,000 The connection between coronavirus infection and unusual spots on the limbs was denied – Science

TASS, June 26.Doctors from Belgium have proved that due to mild forms of coronavirus infection, patients should not develop swelling and blisters on the arms and legs, which are similar to the effects of frostbite. The research results were published in the scientific journal JAMA Dermatology.

“In the midst of the pandemic, many patients developed unusual purple and red spots on their feet and hands. They look like the blisters and swelling that occurs after frostbite. We have proven that these spots are not caused by the coronavirus,” the researchers write.

From the first days after the outbreak of coronavirus infection, scientists know that SARS-CoV-2 infects cells not only in the lungs, but also in other tissues of the body, including inside the nasal mucosa, esophagus, blood vessels and heart, as well as a number of others organs.

A similar feature of the virus, as scientists now suggest, may explain why many sick people not only suffer from respiratory disorders, but also lose their sense of smell, they have problems with digestion and malfunctions of the circulatory system.

Consequences of self-isolation

Studying the case histories of three dozen patients who sought help at the dermatological department of the clinic of the Catholic University of Leuven in mid-April, physicians and biologists led by Professor Maria Beck questioned the existence of another unusual consequence of the development of coronavirus infection – spots on the legs and arms.

When diagnosing patients, scientists also tested them for traces of coronavirus RNA in the body.In addition, they looked for traces of antibodies and other molecules that provoked the appearance of microthrombi and other blood clots in the bodies of patients with coronavirus infection.

Surprisingly, this analysis showed that spots on the feet, toes and hands appeared in 64% of patients. However, none of them had previously been hospitalized with coronavirus infection. In addition, neither PCR tests nor tests for antibodies to the new type of coronavirus showed any hints of traces of the virus in their bodies.

All this, according to the researchers, suggests that such spots are unlikely to be the result of coronavirus infection, even in a mild or asymptomatic form. In favor of this is also indicated by the fact that in no case was the chilliness accompanied by the development of inflammation and other disorders of the immune system.

In their opinion, such spots arose due to the fact that their patients abruptly switched to a sedentary lifestyle after the introduction of quarantine. This must be taken into account when further combating the virus and protecting the population from the consequences of the spread of the pandemic, the authors of the article conclude.

UOKTSSVMP them. E. M. Chuchkalova

August 31, 2021 Andrey Kuznetsov

The topic of the new issue of Medical Conversations is how to recognize and prevent Alzheimer’s disease. The prevalence of Alzheimer’s disease among 65-year-olds, according to various sources, in the world is 6-12%. It turns out that every 10th person over 65 suffers from Alzheimer’s disease. We will talk about the first signs of the disease, treatment and prevalence in the Ulyanovsk region in the new issue of the section “Talk about medicine”.The guest is Olga Gavrilina, chief freelance psychiatrist of the Ministry of Health of the Ulyanovsk Region.

Read more ”

August 31, 2021 Andrey Kuznetsov

The decision to provide disabled people with technical means of rehabilitation is taken by specialists of medical and social expertise in the development of an individual program for the rehabilitation or habilitation of a disabled person (IPRA), based on an assessment of persistent disorders of body functions, in accordance with the current “List of indications and contraindications for providing disabled people with technical means of rehabilitation” , approved by the Order of the Ministry of Labor of the Russian Federation of December 28, 2017 No.No. 888n.

These technical means of rehabilitation include medical thermometer with speech output and medical tonometer with speech output.

Medical indications for the provision of disabled people with a medical thermometer with a speech output are significantly pronounced impairments of sensory functions (vision) due to diseases, consequences of injuries, anomalies and malformations of the organ of vision, leading to low vision (visual acuity of a single or better seeing eye: 0 – 0 , 04 with correction), taking into account the possibility of deliberate use of the information received; complete (total) or practical blindness in combination with hearing loss of III, IV degrees.

Read more ”

August 20, 2021 Andrey Kuznetsov

The Ulyanovsk Regional Clinical Center for Specialized Types of Medical Care named after the Honored Doctor of Russia E.M. Chuchkalov, a man injured in a traffic accident was delivered by ambulance. Doctors diagnosed him with a severe concomitant injury.

During the accident, the patient was pierced through by a metal fence installed along the road, into which the car crashed.The bump stop came out from the side of the scapula, and also damaged the victim’s ribs. The Emergencies Ministry rescuers who arrived at the scene were able to cut down only part of the bump stop.

“There was a foreign object about 70 centimeters in size in the patient’s body. A multidisciplinary team of eight specialists performed an emergency operation to remove it, as well as to reconstruct the vessels. The patient underwent surgical debridement, muscle suturing, drainage of the postoperative wound. The operation lasted about an hour and a half. Today, positive dynamics are already visible, but the treatment will still be long.We are struggling with possible infectious complications, ”says the head of the neurosurgery department of the UOCTsSVMP estate of E.M. Chuchkalova Mikhail Sokolov.

Read more ”

90,000 Bumps appear and itch on the body

People are often faced with the fact that all sorts of bumps appear on the body, some of them cause itching and itch. This naturally causes a lot of inconvenience. In addition, it becomes necessary to find out the cause of the appearance of the lump, and the methods for its elimination.But don’t be in a hurry. Neoplasms are of a diverse nature. Many of them can have serious consequences, so it is extremely important to determine exactly what these bumps are and why they itch.

What are the types of education

In medicine, many different types of cones have been recorded, which differ in some ways. Below are the most common external differences of neoplasms:

  1. bud size;
  2. localization place;
  3. the number of similar swellings;
  4. skin color on the bump;
  5. it itches or not;
  6. is the density of the inner content.

Education not on the forehead

Pay attention! The above factors will help determine the type of bump in order to narrow down the search for causes. Carefully consider her external data, conduct an examination of the whole body to exclude the appearance of new tumors. Pay special attention to examining the head as it is not easy to notice any changes under the hair.

Possible causes of cones

When something itches on a person’s body, it not only irritates, but also attracts the attention of others.Formations on the arms, legs and on the head under the hair may not be noticeable, but if a bump appears on the face or a visible part of the body, then this significantly spoils the person’s appearance, giving him discomfort. And if, among other things, she also itches unbearably, then this can unsettle anyone. It is important not to panic at such moments, but to try to figure it out correctly. The reasons why a lump appears and itches may be the following factors:

  1. allergic reaction;
  2. inflammation of the lymph nodes;
  3. folliculitis;
  4. hemangioma;
  5. infection of the skin;
  6. lipoma;
  7. 90,065 bites of various insects;

  8. subcutaneous wen;
  9. cancerous tumors;
  10. atheroma.

Pay attention! This is not a complete list that you can find in medical reference books. But, the above factors are the most common causes of all kinds of swelling that itch.

Main features and differences

Before you sound the alarm and run to the doctor, you can figure out the reasons for the appearance of unwanted bumps yourself. And if all the signs completely coincide with the descriptions, and the reason turns out to be insignificant, then you can get rid of the swelling yourself.But pay attention! If red bumps itch and grow, if their localization grows, and they appear for no apparent reason, it is better to consult a doctor immediately.

Diagnosis by a dermatologist

We also recommend that you consult a healthcare professional if you notice similar problems in your child. He will not be able to accurately answer whether the neoplasm itches, and when exactly it appeared.

Allergy

One of the most common causes is an allergic reaction of the body to an irritant.This is especially the case with a young child. When you notice small red spots on the body that cause itching (see photo), it is worth taking an antihistamine according to the age of the victim. Numerous external stimuli can cause allergies, the most common of which are:

  1. household chemicals, washing, washing and cleaning;
  2. food products, most often sugar for a child;
  3. medicines;
  4. cosmetics and perfumery;
  5. pollen from flowering plants;
  6. dust and mold;
  7. animal hair.

Allergic rash in a child

Pay attention! Anything can be an allergen. It is important to identify him as quickly as possible and completely limit contact with him. Perhaps a rash alone will not do. A more severe form may present with swelling and difficulty breathing. In this case, you should immediately call an ambulance.

Lipoma

Many people have small lipomas on their bodies, but some do not even know what they are.Benign tumors made up of fat cells can be located where there is most of the fatty tissue. They are dense and quite elastic, can be very small in size, and can reach 2-3 cm in diameter. As a rule, lipomas do not cause discomfort and do not itch, see the photo. But in the presence of an inflammatory process in the body, the bumps on the body itch. There can be many of them on the arms and legs. It is recommended that you periodically be examined by an oncologist.

Lipomas on the arm

Lymph nodes

When an infection enters the human body, the lymph nodes are most often the first to react to its appearance.They become inflamed and turn red, rapidly increasing in size. If the bump on the head itches and is behind the ears, then most likely it is a lymph node. When you press on it, painful sensations arise. These are rather dense formations that can change their dislocation, causing discomfort. These red bumps are a filter for the blood, they trap the infectious agent. They should be treated strictly on the recommendation of a doctor. Lymph nodes can also be located on the arms, legs, neck, and head.

Enlarged lymph nodes

Insect bites are the least dangerous, but they also require attention and additional treatment of damaged skin. If the bumps on the legs itch from the bites, then you should take any antihistamine and treat the bite area with special means. Important! Without knowing the exact cause of the appearance of neoplasms, you do not need to start treating them yourself!

Vkontakte

Facebook

Odnoklassniki

My world

90,000 How long does a mosquito bite take and why does it itch

Mosquitoes are real pests, they not only annoy with their squeak, but also leave unpleasant itchy marks after bites.People react differently to mosquito bites, some have no reaction, while others develop red itchy bumps that need to be treated with special means.

How does a mosquito bite happen

The female mosquito, after landing on the skin or clothing of a person, begins to look for a suitable place for a bite. Its mouth has sharp bristles and tubes. The bristles cut a hole in the skin, which allows the female mosquito to feel the tissue until it touches a small blood vessel or capillary.She then inserts two tubes into a blood vessel or capillary, with saliva flowing through one tube and the person’s blood being sucked through the other. Saliva acts as an anticoagulant, making it easier for the blood to move.

Why do mosquito bites itch?

In fact, it is not the bite that itches, it is your body’s reaction to the mosquito’s saliva, which contains proteins and an anticoagulant – foreign substances for the human body. To fight them, the immune system will release histamine to help the white blood cells get to the affected area and heal the bite.Histamine also causes the itching and swelling that accompanies a mosquito bite.

How long does it take for a mosquito bite

Depending on your tolerance, this may take from one day to several weeks. As it heals, your red and itchy skin will heal, the swelling and the urge to scratch will go away.

What remedies help with a mosquito bite

If, after being bitten by a mosquito, you develop intolerable itching, try not to itch, otherwise the skin will become more inflamed and irritated.There is also a risk of causing an infection on damaged skin.

To deal with itching, use the following tips:

  • The first and most common option is to take over-the-counter antihistamines. They will help reduce the amount of histamine in your blood and reduce itching and swelling. Oral medications such as Benadryl or topical remedies such as Calamine lotion or Fenistil gel work well.
  • Honey is a natural antiseptic with antibacterial components, which helps to speed up wound healing.Spread over mosquito bites and leave for a while.
  • Rubbing alcohol helps to relieve itching and swelling of the skin. Apply a small amount of alcohol to the affected area with a cotton pad, be careful not to get it on healthy skin. You can also use alcohol wipes.
  • Tea tree oil, known for its intense scent, can also help relieve the itching and discomfort of a mosquito bite. Dilute a few drops of tea tree oil in a glass of water and apply to the affected area.

Who is most often bitten by mosquitoes?

Mosquitoes are attracted by many factors, including people with blood type I, pregnant women, people who produce high amounts of uric acid, lactic acid or ammonia, and anyone who has recently exercised.

How to prevent mosquito bites

When outdoors, wear loose-fitting clothing, as mosquitoes can easily bite through fabric that is close to the body.Also, refrain from prolonged exposure to the open air in the evening and at dawn, as this is when mosquitoes are most active.

And of course use insect spray.

How quickly do mosquito bites pass and how do you save yourself? Share your opinion in the comments!

.