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 ...

More information has emerged about “COVID arm” — a delayed arm rash appearing after Moderna’s COVID-19 vaccine is administered — including likelihood, duration and treatment. Researchers examined 16 ...

Getting COVID-19 can cause all manner of odd skin reactions. A new study finds some of them, including COVID toes, a measleslike rash and shingles also can be rare, and thankfully brief, side effects ...

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 ...

When a blotchy red rash pops up on your skin, it's not easy to know exactly what the cause is. With thousands of skin diseases to choose from, deciphering your skin can be a challenge. But with skin ...

Pain, swelling, and a rash at the injection site are common reactions to Covid-19 vaccines. Less commonly, someone may develop “COVID arm,” an exaggerated skin reaction to the vaccine. COVID arm is an ...

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 ...