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 ...

An armpit rash can be uncomfortable or even painful. Often, the cause is mysterious, but you can treat the conditions at home. Sometimes, however, an armpit rash is severe enough to require a trip to ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." There are few worse feelings than an itch you can’t scratch—especially when it’s unexplained and in an ...

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 ...