Hives in common areas: What to know

Hives are a form of rash that can often appear when the body responds to a trigger. They can occur anywhere on the body. Hives are particularly common on the arms and legs because the limbs have more exposure to external factors.

Hives, or urticaria, are raised rashes that can develop as red or purplish spots or patches. The rashes are often itchy and uncomfortable.

Hives typically occur when mast cells, which are part of the immune system, trigger an allergic reaction by releasing histamine into the skin. Histamine is a chemical messenger that the immune system releases in response to an injury or allergic reaction.

Mast cells cause hives and control how long they remain.

A similar process known as angioedema occurs when mast cells deeper in the skin release histamine.

Hives can develop due to an allergic reaction to food, medication, or something in the environment, such as being licked by a dog or from non-allergic sources, such as infection or inflammation.

Individual hives typically go away within 24 hours. However, urticaria can persist for several weeks, even months. This can result in new hives appearing as the previous ones fade.

Hives can occur anywhere on the skin. They are particularly common in areas of the body that experience higher pressure, such as the waistline and the groin.

Read on to learn more about the causes, types, and treatments of hives.

Hives can result from:

• physical triggers, such as pressure
• allergic reactions, such as food allergies
• medical conditions, such as infection

Triggers cause the immune system to respond by sending histamines and similar chemicals into the skin, where they cause hives. Triggers can include:

• medication, such as penicillin or anti-inflammatory drugs
• food or drink, such as eggs or seafood
• bacterial infection, such as strep throat
• viral infection, such as infectious mononucleosis
• contact triggers, including latex
• insect bites or stings
• allergens in the air, such as pollen or mold spores
• physical conditions, such as cold temperature or pressure

In rare cases, urticaria can be a hereditary condition.

When hives have no known cause, they are called idiopathic urticaria.

If hives only appear on the arms or legs, they are likely the result of a physical trigger, such as extreme temperature, or a contact allergen, such as latex.

Learn about contact dermatitis here.

Urticaria can be acute or chronic.

With acute urticaria, symptoms go away within 6 weeks. However, when a person has chronic urticaria, the condition can persist for longer than this.

There are three types of chronic urticaria:

• Chronic spontaneous urticaria is where the trigger is unclear, and symptoms occur at least twice each week.
• Chronic inducible urticaria is where specific, physical triggers, such as pressure, cause hives.
• Episodic chronic urticaria can overlap with chronic inducible urticaria, but typically, symptoms appear less than twice each week.

Learn about hives on black skin here.

Treatment options include over-the-counter (OTC) medication, prescription medication, and home remedies.

OTC options include antihistamines, which people can take in higher doses than doctors typically recommend.

If OTC medication does not work, a doctor may prescribe:

• sedating antihistamines
• systemic corticosteroids for short term use
• omalizumab (the only FDA approved treatment for chronic urticaria)
• cyclosporine

However, medication may not always be necessary, as hives can go away by themselves. Home remedies that can help to ease symptoms include:

• soothing the area with a cool compress
• taking a comfortably cool bath
• avoiding tight or itchy clothing and wearing loose, cotton clothes
• avoiding particularly hot or cold temperatures
• avoiding activities that cause sweating

Learn about ways to treat hives here.

It is not always possible to prevent hives from developing on the arms and legs, as around 50% of people with chronic urticaria never find out what causes their hives to appear. However, if there is a clear trigger, the most effective preventive measure is to try to avoid it.

Learn more about hives that come and go daily here.

See a doctor if:

• hives continue to flare up for more than 6 weeks
• OTC treatment is not helping
• individuals want to check for potential allergies

Taking a photograph of hives before an appointment can help a doctor make a diagnosis, as the skin may clear up before the appointment.

If swelling underneath the skin accompanies a rash, a person may have angioedema. This condition can cause similar symptoms but requires swift treatment, as it can cause life threatening swelling that affects the ability to breathe.

Anyone who suspects they have angioedema should see a doctor for a diagnosis as soon as possible.

Severe allergic reactions can cause anaphylaxis, an extreme response that can cause a person to go into anaphylactic shock. Seek immediate medical attention if extreme symptoms develop.

Learn about the differences between urticaria and angioedema here.

Hives, or wheals, occur when the immune system sends histamines and other chemicals into the skin in response to triggers.

Urticaria can be acute, where it goes away within 6 weeks. Chronic urticaria lasts longer than this. The hives themselves disappear within 24 hours, but flare-ups may persist as new hives develop.

Physical triggers, allergic reactions, or medical conditions can cause hives, and they can develop anywhere on the body. The arms and legs are more likely to react to contact triggers, such as allergens, because they have greater exposure.

Hives can be itchy and uncomfortable, but they will generally go away on their own. Home remedies such as a cool compress can help to ease symptoms.

If urticaria symptoms continue, a doctor can suggest a treatment plan to help.

Hives in common areas: What to know

Hives are a form of rash that can often appear when the body responds to a trigger. They can occur anywhere on the body. Hives are particularly common on the arms and legs because the limbs have more exposure to external factors.

Hives, or urticaria, are raised rashes that can develop as red or purplish spots or patches. The rashes are often itchy and uncomfortable.

Hives typically occur when mast cells, which are part of the immune system, trigger an allergic reaction by releasing histamine into the skin. Histamine is a chemical messenger that the immune system releases in response to an injury or allergic reaction.

Mast cells cause hives and control how long they remain.

A similar process known as angioedema occurs when mast cells deeper in the skin release histamine.

Hives can develop due to an allergic reaction to food, medication, or something in the environment, such as being licked by a dog or from non-allergic sources, such as infection or inflammation.

Individual hives typically go away within 24 hours. However, urticaria can persist for several weeks, even months. This can result in new hives appearing as the previous ones fade.

Hives can occur anywhere on the skin. They are particularly common in areas of the body that experience higher pressure, such as the waistline and the groin.

Read on to learn more about the causes, types, and treatments of hives.

Hives can result from:

• physical triggers, such as pressure
• allergic reactions, such as food allergies
• medical conditions, such as infection

Triggers cause the immune system to respond by sending histamines and similar chemicals into the skin, where they cause hives. Triggers can include:

• medication, such as penicillin or anti-inflammatory drugs
• food or drink, such as eggs or seafood
• bacterial infection, such as strep throat
• viral infection, such as infectious mononucleosis
• contact triggers, including latex
• insect bites or stings
• allergens in the air, such as pollen or mold spores
• physical conditions, such as cold temperature or pressure

In rare cases, urticaria can be a hereditary condition.

When hives have no known cause, they are called idiopathic urticaria.

If hives only appear on the arms or legs, they are likely the result of a physical trigger, such as extreme temperature, or a contact allergen, such as latex.

Learn about contact dermatitis here.

Urticaria can be acute or chronic.

With acute urticaria, symptoms go away within 6 weeks. However, when a person has chronic urticaria, the condition can persist for longer than this.

There are three types of chronic urticaria:

• Chronic spontaneous urticaria is where the trigger is unclear, and symptoms occur at least twice each week.
• Chronic inducible urticaria is where specific, physical triggers, such as pressure, cause hives.
• Episodic chronic urticaria can overlap with chronic inducible urticaria, but typically, symptoms appear less than twice each week.

Learn about hives on black skin here.

Treatment options include over-the-counter (OTC) medication, prescription medication, and home remedies.

OTC options include antihistamines, which people can take in higher doses than doctors typically recommend.

If OTC medication does not work, a doctor may prescribe:

• sedating antihistamines
• systemic corticosteroids for short term use
• omalizumab (the only FDA approved treatment for chronic urticaria)
• cyclosporine

However, medication may not always be necessary, as hives can go away by themselves. Home remedies that can help to ease symptoms include:

• soothing the area with a cool compress
• taking a comfortably cool bath
• avoiding tight or itchy clothing and wearing loose, cotton clothes
• avoiding particularly hot or cold temperatures
• avoiding activities that cause sweating

Learn about ways to treat hives here.

It is not always possible to prevent hives from developing on the arms and legs, as around 50% of people with chronic urticaria never find out what causes their hives to appear. However, if there is a clear trigger, the most effective preventive measure is to try to avoid it.

Learn more about hives that come and go daily here.

See a doctor if:

• hives continue to flare up for more than 6 weeks
• OTC treatment is not helping
• individuals want to check for potential allergies

Taking a photograph of hives before an appointment can help a doctor make a diagnosis, as the skin may clear up before the appointment.

If swelling underneath the skin accompanies a rash, a person may have angioedema. This condition can cause similar symptoms but requires swift treatment, as it can cause life threatening swelling that affects the ability to breathe.

Anyone who suspects they have angioedema should see a doctor for a diagnosis as soon as possible.

Severe allergic reactions can cause anaphylaxis, an extreme response that can cause a person to go into anaphylactic shock. Seek immediate medical attention if extreme symptoms develop.

Learn about the differences between urticaria and angioedema here.

Hives, or wheals, occur when the immune system sends histamines and other chemicals into the skin in response to triggers.

Urticaria can be acute, where it goes away within 6 weeks. Chronic urticaria lasts longer than this. The hives themselves disappear within 24 hours, but flare-ups may persist as new hives develop.

Physical triggers, allergic reactions, or medical conditions can cause hives, and they can develop anywhere on the body. The arms and legs are more likely to react to contact triggers, such as allergens, because they have greater exposure.

Hives can be itchy and uncomfortable, but they will generally go away on their own. Home remedies such as a cool compress can help to ease symptoms.

If urticaria symptoms continue, a doctor can suggest a treatment plan to help.

Rash and irritation from sweat: how to prevent

Rash and irritation on the skin in the armpit area from sweat is a very common phenomenon that can begin at any time. Natural microscopic yeast-like fungi of the genus Candida on your skin cause irritation and rashes if the natural balance of the skin is disturbed. This can happen when sweat from the sebaceous glands remains on the skin without completely evaporating.

What causes rash and skin irritation from sweat? Symptoms of prickly heat

Rash and irritation on the skin in the armpit area from sweat is a very common phenomenon that can start at any time. Natural microscopic yeast-like fungi of the genus Candida on your skin cause irritation and rashes if the natural balance of the skin is disturbed. This can happen when sweat from the sebaceous glands remains on the skin without completely evaporating.

Skin itching, irritation, red rash appears; there may be a burning sensation in the armpits or the skin may become damaged. Sweat rash can occur with prickly heat, excessive sweating, changing body care products (shower gel, soap, deodorant), wearing synthetic fabrics, too tight clothing, as well as rubbing the shoulder straps of a backpack or armpit bag.

Some people have very sensitive skin and react immediately to odors and fragrances. Also, allergies can occur to ingredients in body and skin care products, such as alcohol and aluminum salts.

Where does sweat irritation occur?

Sweat rash and irritation tend to occur where skin surfaces rub against each other, such as underarms, back of knees, between legs, groin, and chest and under breasts. Also, irritation can begin where clothing rubs against the skin and sweat is released (for example, when wearing tank tops, the fabric rubs against the skin of the armpits).

How to deal with irritation and rash in the armpit area?

Most types of rash and sweat irritation occur as a natural reaction to an irritant. If you’re sensitive to perfumes or fragrances, or prone to eczema, use unscented antiperspirants and body care products. For example, Rexona Odorless antiperspirant, which is suitable even for sensitive skin. Also try using an emollient or moisturizer along with an antiperspirant or deodorant to help maintain the skin’s natural balance.

To combat irritation and rashes on the skin in the armpits, follow these simple rules:

• When exercising, wear loose clothing and choose natural fabrics that can absorb sweat, such as cotton and linen.
• In hot weather, if the skin becomes irritable, stay hydrated and take cool showers and baths.
• If a new skin care product causes irritation, stop using it.
• If the rash develops further, wear light clothing made from natural fabrics and avoid synthetic fabrics as they can irritate the skin.
• Antiperspirants containing aluminum salts may help control perspiration. This will help keep the skin fresh and clean throughout the day and fight one of the causes of rashes and irritation – afterwards. If your armpits become irritated and rash, use a moisturizer along with an antiperspirant, and try antiperspirants that contain skin care and moisturizers for sensitive skin and deodorant creams.

If all of the above does not help, and the rash and irritation in the armpit area does not go away, seek help from a doctor.

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Itching and rash in a child

A B C D
E F G H I
K L M N O
P R S T U
F X C H W
Shch E Yu Ya

If your child’s rash is itchy, it’s most likely caused by an allergy, infection, or skin disease. Fungal skin infections are also accompanied by itching, although (with the exception of pregnancies) they rarely occur before adolescence. Some children have a habit of scratching their skin, which in itself causes irritation and itching. Scratching further damages the skin, predisposing to infection. This vicious circle is especially easy to develop in children with allergies.

There are many causes of itching without a rash, such as dry skin or eczema, as well as some serious but rare conditions. In girls, itching can cause vulvovaginitis, and in teenage boys, fungal diseases. The doctor will diagnose and prescribe treatment. Make sure your child maintains personal hygiene.

DOCTOR’S CONSULTATION

Call the pediatrician if:

• the child has a rash on the skin

WARNING!

If your child has an itchy skin condition, use a mild soap and avoid heavily scented products.

Rinse your laundry thoroughly after washing to completely remove detergent residue.

FOR INFORMATION

Help for eczema

Eczema is characterized by a pink or red, often weeping, scaly rash on the elbows, popliteal fossae, cheeks, neck, groin, and back of the hands and feet. Disturbs a strong itch.

Eczema is more common in families in which someone suffers from allergic diseases. However, it must be remembered that in these cases, allergies are not the only possible cause of a skin rash in a child.

Eczema can start at any age. In children 2-6 months of age, it appears as itchy red pimples on the scalp that sometimes spread to the arms and body. In about half of the cases, the disease resolves by 2-3 years. In some children, recovery occurs by the age of 6, sometimes by adolescence. It happens that the disease worsens from time to time.

If you think certain foods are causing your flare-ups, cut them out of your diet. The pediatrician will help you here with advice. Use pH-neutral, unscented soap. In some cases, it is necessary to reduce the number of baths to 1-3 times a week. The pediatrician may recommend medication.

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A complete list of symptoms (more than 70) that require the attention of a pediatrician can be found here.