That tender, angry bump in your armpit started as a tiny annoyance. Now it’s a throbbing, painful mess that makes putting on deodorant feel like torture. If you’ve dealt with armpit boils, you know ...

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 ...