What are hives and how do they differ from mosquito bites. What causes hives to appear on the skin. How can hives be treated effectively at home. When should you seek medical attention for hives. What are the best ways to prevent hives from recurring.

Understanding Hives: More Than Just Mosquito Bite Look-Alikes

Hives, medically known as urticaria, are a common skin condition that affects approximately 20% of people at some point in their lives. While they may resemble mosquito bites, hives are distinct in their nature and causes. These red, raised bumps on the skin can vary in size, from small spots to large patches covering significant areas of the body.

Unlike mosquito bites, which are caused by insect bites, hives result from the body’s release of histamine, a chemical involved in the immune response. This release can be triggered by various factors, including allergies, stress, infections, or certain illnesses.

Key Characteristics of Hives

• Appearance: Red, raised welts on the skin
• Size: Can range from small bumps to several inches wide
• Location: Can appear anywhere on the body
• Duration: May disappear quickly or persist for weeks or months
• Movement: Often change location on the body over time

Do hives always indicate an allergic reaction? Not necessarily. While allergies can cause hives, many cases are not allergy-related. Understanding the underlying cause is crucial for effective treatment and prevention.

Recognizing the Signs and Symptoms of Hives

Identifying hives is the first step towards proper management. While the appearance of hives can vary, certain symptoms are common across most cases.

Common Symptoms of Hives

• Itching, which can range from mild to severe
• Swelling of the skin (angioedema), particularly on the lips, ears, eyelids, fingers, or toes
• Changing appearance and location of the welts
• Potential warmth in the affected areas

Can hives be part of a more serious condition? In rare cases, hives may be a symptom of anaphylaxis, a severe allergic reaction that can be life-threatening. If hives are accompanied by difficulty breathing, swelling of the throat, or dizziness, immediate medical attention is necessary.

Unraveling the Causes: Why Do Hives Occur?

The underlying causes of hives can be diverse and sometimes elusive. Understanding these triggers is essential for both treatment and prevention.

Non-Allergic Triggers of Hives

1. Viral or bacterial infections (e.g., common cold, strep throat, urinary tract infections)
2. Emotional stress and anxiety
3. Physical exertion and heat
4. Exposure to extreme temperatures
5. Sunlight or artificial UV light
6. Pressure or friction on the skin

Allergic Triggers of Hives

1. Food allergens (e.g., eggs, peanuts, tree nuts, milk, shellfish)
2. Medications (e.g., aspirin, ibuprofen, naproxen sodium)
3. Environmental allergens (e.g., pollen, animal dander, latex)
4. Insect stings or bites

Is it possible to identify the specific trigger for hives? While it can be challenging, keeping a diary of activities, foods, and environmental exposures when hives occur can help pinpoint potential triggers.

Effective Treatment Strategies for Hives

The treatment of hives focuses on managing symptoms and preventing recurrence. The approach may vary depending on the severity and duration of the condition.

Home Remedies for Mild Hives

• Over-the-counter antihistamines (e.g., loratadine, fexofenadine, cetirizine)
• Applying cool compresses or taking cool baths
• Wearing loose, comfortable clothing
• Avoiding known triggers

Medical Treatments for Severe or Chronic Hives

• Prescription-strength antihistamines
• Short-term use of oral corticosteroids
• Omalizumab (Xolair) injections for chronic cases
• Epinephrine auto-injectors for those at risk of anaphylaxis

How long does it typically take for hives to respond to treatment? While individual responses vary, many people experience relief within a few hours to days of starting treatment. However, chronic hives may require ongoing management.

When to Seek Medical Attention for Hives

While most cases of hives can be managed at home, certain situations warrant immediate medical attention.

Emergency Situations Requiring Immediate Care

• Difficulty breathing or swallowing
• Swelling of the tongue or throat
• Dizziness or fainting
• Severe abdominal pain or vomiting

These symptoms may indicate anaphylaxis, a severe allergic reaction that can be life-threatening if not treated promptly.

Non-Emergency Situations That Require Medical Evaluation

• Hives persisting for more than six weeks
• Hives that don’t respond to over-the-counter treatments
• Frequent recurrence of hives
• Hives accompanied by fever or joint pain

Should you always consult a doctor for hives? While mild cases often resolve on their own, persistent or severe hives warrant medical evaluation to rule out underlying conditions and ensure appropriate treatment.

Preventing Hives: Strategies for Long-Term Management

Prevention is key in managing hives, especially for those prone to recurrent episodes. By identifying and avoiding triggers, many individuals can significantly reduce the frequency and severity of hive outbreaks.

General Prevention Strategies

• Maintaining a food and activity diary to identify potential triggers
• Avoiding known allergens and irritants
• Managing stress through relaxation techniques or counseling
• Protecting skin from extreme temperatures and excessive sun exposure
• Wearing loose-fitting, breathable clothing

Specific Prevention for Allergic Hives

• Following an elimination diet under medical supervision to identify food triggers
• Using hypoallergenic personal care products and detergents
• Keeping living spaces clean and free of dust and pet dander
• Carrying an epinephrine auto-injector if prescribed

Is it possible to completely prevent hives? While complete prevention may not be possible for everyone, identifying and avoiding triggers can significantly reduce the frequency and severity of outbreaks.

Living with Chronic Hives: Coping Strategies and Support

For individuals dealing with chronic hives, the condition can have a significant impact on quality of life. Developing effective coping strategies and seeking support are crucial for managing the physical and emotional aspects of chronic hives.

Emotional and Psychological Support

• Joining support groups for individuals with chronic skin conditions
• Seeking counseling or therapy to manage stress and anxiety
• Practicing mindfulness and relaxation techniques
• Educating family and friends about the condition

Lifestyle Adjustments

• Developing a consistent skincare routine
• Choosing clothing and fabrics that minimize skin irritation
• Planning activities and travel with consideration for potential triggers
• Maintaining open communication with healthcare providers

How can individuals with chronic hives maintain a positive outlook? Focusing on self-care, building a support network, and working closely with healthcare providers can help individuals manage their condition effectively and maintain a good quality of life.

Advances in Hives Research: New Treatments on the Horizon

The field of hives research is constantly evolving, with new treatments and management strategies emerging. Understanding these developments can provide hope and new options for those struggling with chronic or recurrent hives.

Emerging Treatments

• Biologics: New targeted therapies that modulate the immune system
• Immunotherapy: Treatments aimed at desensitizing the immune system to specific triggers
• Novel antihistamines: More potent and longer-lasting than current options
• Personalized medicine approaches: Tailoring treatments based on individual genetic and immune profiles

Ongoing Research Areas

• Understanding the genetic factors contributing to chronic hives
• Investigating the role of gut health in hives development
• Exploring the connection between hives and autoimmune disorders
• Developing more effective diagnostic tools for identifying hives triggers

What potential breakthroughs in hives treatment can we expect in the coming years? While it’s difficult to predict specific outcomes, the focus on personalized medicine and targeted therapies holds promise for more effective and tailored treatments for individuals with hives.

Hives, while often benign, can significantly impact an individual’s quality of life. By understanding the causes, recognizing symptoms, and implementing effective treatment and prevention strategies, most people can successfully manage this condition. For those dealing with chronic or severe hives, staying informed about new research and treatment options offers hope for improved management in the future. Remember, while hives may resemble mosquito bites, their complexity requires a nuanced approach to diagnosis, treatment, and long-term management.

Hives (Urticaria): Causes, Treatment and Prevention

Nationwide Children’s Hospital

Overview

Signs & Symptoms

Causes

Treatment

What to Expect

When to Seek Help

What Are Hives?

Hives are red, raised bumps on the skin that can be itchy. Hives are also called urticaria. About 1 in 5 people will get hives at some point in their lives.

What Are the Signs and Symptoms of Hives?

Hives can be found anywhere on the body. They can be small, like mosquito bites, or several inches wide. Even if they look different, hives often have common symptoms.

• People may have one hive or groups of hives that cover large areas of the body.
• Hives can move around on the body. They may start in one place, then move to another place on the body. 
• Hives may go away quickly or come and go for many weeks or months. 
• Skin swelling is common with hives. It may happen on the lips, ears, eyelids, fingers, or toes. This is common and not dangerous. 
• Less commonly, hives can occur as part of a more severe allergic reaction called anaphylaxis. Anaphylaxis can cause the airway to swell, making it hard to breathe. This is a life-threatening reaction that needs to be treated right away. 

What Causes Hives?

Hives happen when the body releases a chemical called histamine. It can be released because of allergies or other things, like stress, infections, or some illnesses. Whatever is causing histamine to be released is called a trigger.

• Hives not related to allergies are more common. Their triggers are:
  • Viruses or infections, like a cold, strep throat, or a urinary tract infection (UTI).
  • Emotional stress, like anxiety, anger, fear, or sadness.
  • Exercises that make the body warm.
  • Vibrations from using a lawn mower, horseback riding, or mountain biking.
  • Temperatures that are too hot or too cold.
  • Sunlight or tanning beds (sunlamps).
  • Pressure on the skin, like being rubbed too hard or scratched, or by wearing clothes that are too tight.

Hives that are related to allergies are less common. Their triggers are:

• Foods or medicines (anaphylaxis may occur) – Symptoms include nausea, throwing up (vomiting), mouth/throat swelling, and trouble breathing. This can be very dangerous.
  • Some common foods that cause allergies include eggs, peanuts, tree nuts, milk, and shellfish. 
  • Some medicines that cause allergies include aspirin, ibuprofen (Advil®, Motrin®), and naproxen sodium (Aleve®).
• Contact with the skin that can lead to irritation. These are usually not dangerous.
  • Plants, grasses, weeds
  • Acidic foods or sauces
  • Scents or fragrances (soaps, detergents, lotions)
  • Animal dander
  • Latex or other materials

When to Get Emergency Help

Call 911 or take your child to the closest emergency room if they have hives and any symptoms of anaphylaxis:

• Trouble breathing, swallowing, or talking
• Swelling of the mouth or tongue
• Nausea or vomiting

If they have an epinephrine auto-injector, like EpiPen®, Auvi-Q®, or Adrenaclick®, use it right away.

How Are Hives Treated?

Treatment depends on how bad the itching is. Even with treatment, hives can last days to weeks. The goals of treatment are to:

• Control the itching
• Avoid things that may trigger hives

For mild hives:

• Give an over-the-counter (OTC) antihistamine each day. Some examples are:
  • Loratadine (Claritin®)
  • Fexofenadine (Allegra®)
  • Cetirizine (Zyrtec®)
  • Levocetirizine (Xyzal®)
• Do not use Benadryl® creams. These may cause irritating rashes.
• Cool the skin using an ice pack or a cold bath or shower.
• Distract your child by playing games, singing songs, or reading books.
• Avoid known triggers, like animal dander or fragrance.

For severe hives:

• Give a higher dose of antihistamines or steroids, like prednisone. Oral steroids should not be used a lot. They may make hives worse when you stop taking the medicine.
• See a doctor or health care provider. They may prescribe a medicine, like Xolair® shots (injections), if you have long-term (chronic) hives.

Living With Hives

Living with hives isn’t easy, especially if you don’t know what’s causing them. It may help if you write down events that happened right before the hives appeared. This can help you and your child make a plan to keep the hives from coming back.

Depending on what’s causing your child’s hives, you can keep their hives from getting worse by having them:

• Avoid scratching or rubbing their skin.
• Wash their hands after touching pets or animals.
• Wear loose-fitting clothes. • Wear warm clothes. 
• Wear sunblock and long sleeves and pants in the sun.
• Avoid contact with cold water if they’re sensitive to cold.
• Use mild, unscented soap on their skin and for washing clothes.

When to Call the Doctor

Call the doctor or health care provider if your child’s hives get worse or prescribed medicine isn’t helping.

Hives (Urticaria) (PDF), Spanish (PDF), Somali (PDF)

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How to Know When It’s a Chigger Bite

Sometimes called “berry bugs” or “red bugs,” chiggers populate large sections of the United States — including all of the South, the Great Plains, and the Mid-Atlantic. Though they’re often bright red in color, chiggers are only about the size of a grain of salt — making them almost impossible to spot either in the wild or on a person’s skin.

“Chiggers are a type of immature mite that spend time feeding on small mammals, and also on humans,” says Lee Townsend, PhD, a professor emeritus of entomology at the University of Kentucky in Lexington. Dr. Townsend says that there are many different species of mites, but only a few types that bite during their larval stage. It’s these that are referred to as chiggers. “Not all mites are chiggers, but all chiggers are mites,” he adds.

Unlike mosquitoes, ticks, and other biting bugs, chiggers don’t attach themselves to mammals in order to suck blood. Instead, chiggers feast on skin cells and tissue, Townsend explains. But much like mosquitoes and ticks, chiggers can induce a nasty skin reaction. That reaction, he says, comes from the chigger’s saliva, which they use to break down and digest the cells and tissues they devour.

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Chigger Bites Look a Lot Like Other Bug Bites, So Here’s How to Correctly ID Them

As with all bug bites, there’s some person-to-person variation when it comes to chigger bites.

“Different people react differently to bites, so it can be really difficult to tell the difference between bites of things like mosquitoes from chiggers,” Townsend says. Especially if you’re bitten by a lone chigger, the red welt that forms may look more or less identical to a mosquito bite.

But there are bite characteristics that can show up that can help differentiate chiggers from other bugs. For one thing, chigger bites tend to take itchiness to a whole new level. “I don’t know of many things as intensely itchy as a chigger bite,” says Michael Merchant, PhD, a professor of entomology at Texas A&M University in Dallas.

Also, chiggers tend to latch onto a person’s skin in groups. You won’t be able to see them without the aid of a magnifying glass. But you may feel some irritation when they first start feeding. And the resulting bites often appear as clusters of red welts — as opposed to a single itchy lump or a red rash. (1) If you have a swath of itchy skin lumps that looks like many mosquito bites or welts, it’s a good bet you’re dealing with chiggers. (2)

Another characteristic of these bites: chiggers like to gather in areas that are hot and sweaty — like the insides of socks, at waistlines, inside armpits, or behind the knees, Dr. Merchant says. “If you see a pattern of bites only where your sock was, that’s probably chiggers,” he adds.

What Can I Do to Treat Chigger Bites and Relieve the Itching?

While itchy and uncomfortable — not to mention unsightly — chigger bites tend to resolve on their own within a week — and often within a few days. (3) “Once they’re done feeding, [chiggers] drop off on their own,” Townsend says. He recommends taking a hot shower and soaping the area thoroughly. (This can remove chiggers before they’ve had the chance to cause welts and irritation, he says.) Applying topical calamine cream can also help reduce the itch, he adds. So can cold compresses, oral antihistamines like diphenhydramine (Benadryl) or cetirizine (Zyrtec), and rubbing alcohol. (4)

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Do you need to see a doctor? In most cases, no. “Chiggers can transmit diseases in some other parts of the world, but not here,” Townsend says of domestic chiggers.

That said, chigger bites can put a person at risk for a secondary infection. That could happen if you scratch the bite (or bites) and break open the skin, allowing in bacteria, Merchant says.

If the swelling or redness around a bite is getting worse several days after it first appeared, or if you notice a fever or other flu-like symptoms, those may be signs of an infection. The same is true if the bite is leaking fluid, has developed a yellow, golden crust, or has become painful, or if you’re experiencing hives, vomiting, or nausea — see a doctor.  (5)

Doctors can prescribe prescription topical steroids or even inject dilute steroids into intensely itchy bites if you don’t experience relief from over-the-counter options.

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Yes, You Can Avoid Getting Chigger Bites and Still Enjoy the Outdoors

Chiggers usually live in shaded or overgrown areas like forests and wild fields, Townsend says. “They need shelter from the sun and they like high humidity, so they tend to like tall grasses and places where there are mice and small mammals around,” he says. “You’re not going to run into many of them out in mowed or landscaped areas.”

For that reason, keeping yards or outdoor areas well-tended and free of overgrowth and brush are effective ways to keep chigger populations to a minimum. Staying on walking paths — as opposed to making your way through tall grass or wilder areas — is another way to avoid picking up chiggers. (6)

If you’re going to be tramping through woods or picking fruit in a field, those are times when you’ll want to take extra precautions to guard yourself against chiggers. Townsend recommends wearing long pants and tucking them into your socks. “Repellents also help,” he says, mentioning common types like DEET, which is also used to repel mosquitoes and ticks. Be sure to use those repellents on your shoes and lower legs — places chiggers tend to latch on.

And again, taking a hot, soapy shower after you’ve been in chigger-infested areas can help remove them before they cause skin irritation, Townsend says.

Chiggers are a nuisance — and their bites can be incredibly itchy. But if you can resist scratching those bites, they don’t cause any long-term issues or health complications.

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7 signs of skin cancer that no one pays attention to

Everyone knows that if a mole has changed size or color, you need to urgently run to an oncologist. But it happens that the body gives much less obvious signals that may indicate a malignant skin tumor.

16,000 British people are diagnosed with skin cancer every year, and 2,500 of them eventually die, reports the Mirror. The good news is that 80 to 100 percent of cases found in stage 1 or 2 are easily treatable. How not to overlook the tumor, said dermatologist Ross Perry.

1. Unexplained scars

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If out of nowhere you have a scar that grows in size, this may be a sign of a basalioma. It occurs on areas of the skin that are exposed to intense sun exposure. The scar may look like a waxy thickening. This is the most common form of skin cancer, but, fortunately, the least dangerous if detected early.

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The doctor named the signs of skin cancer that can be detected at home

The doctor named the signs of skin cancer that can be detected at home

Some symptoms of skin cancer at the initial stage of the disease can be detected independently by examining your body in the mirror, said British doctor Ross Perry in … RIA Novosti, 05/31/2021

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MOSCOW, May 31 – RIA Novosti. Some symptoms of skin cancer at the initial stage of the disease can be detected independently by examining your body in the mirror, said British doctor Ross Perry in a commentary to the Daily Mirror. For example, according to a doctor, small red bumps on the skin that are easily mistaken for mosquito bites may actually be signs of skin cancer. “The patient may decide that he was bitten by insects, but in this case, the marks on the skin will disappear within a couple of weeks and will gradually decrease every day,” the doctor explained. If he found non-healing wounds that cause discomfort, he advised to consult a specialist. Readers of the newspaper were also warned about other signs of skin cancer that can be detected on their own. Among them:

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MOSCOW, May 31 – RIA Novosti . Some symptoms of skin cancer at the initial stage of the disease can be detected on your own by looking at your body in the mirror, British doctor Ross Perry told in a commentary on Daily Mirror .

For example, according to a doctor, small red bumps on the skin that are easily mistaken for mosquito bites may actually be signs of skin cancer.

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“The patient may decide that he was bitten by insects, but in this case, the marks on the skin will disappear within a couple of weeks and will gradually decrease every day,” the doctor explained.