What Causes a Rash in Your Armpit? An armpit rash is more common than you might think. Your armpits probably come into contact with more chemicals each day than most other parts of your body. Don’t be ...

Armpit rashes often develop due to allergic reactions, infections, and chronic conditions. Rashes are common under the arms because the skinfold creates a warm, moist environment. Additionally, the ...

An armpit rash is often caused by irritation from sweat, friction, soap, or dryness. It could also be an allergic reaction to fragrances or propylene glycol (a deodorant ingredient). Other causes of ...

I had a rash on my arm that I thought was from a bug bite. After 2 years and countless appointments with 10 doctors, I finally got a lupus diagnosis. When I was in high school, I got a rash on my arm ...

Katlein Franca, MD, is a dermatologist and clinical associate professor of Dermatology & Cutaneous Surgery and Psychiatry & Behavioral Sciences at the University of Miami. Different kinds of skin ...

Viral skin rashes (also known as viral exanthems) can cause itching, irritation, and pain — and possibly symptoms like fever or fatigue. Unlike allergic rashes, which happen when your immune system ...

Rashes are one of the most common reasons that parents of small children visit the doctor. In most cases rashes do not indicate a dangerous condition, but in some cases they do. If a child is in good ...

Hyperthyroidism may present with an itchy rash, hives, or changes in skin pigmentation. Medications that treat hyperthyroidism may also cause a rash. Hyperthyroidism, also known as overactive thyroid, ...

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Armpit pain is a common complaint that can have many causes, from mild muscle injuries to swollen lymph nodes and severe skin infections. In most cases, armpit pain isn't a reason to worry, but it can ...