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 ...

Some causes of underarm rash include infection, allergic reaction, and inflammation. Itchy, inflammatory, bacterial, or fungal rashes in your armpit can be mild or severe, short-lived or chronic.

Q: You have written about under-breast rash, and I wanted to share a solution. A lot of the women in my walking group use an antifriction stick on their inner thighs to keep from chafing as they walk ...

Q. You have written about under-breast rash, and I wanted to share a solution. A lot of the women in my walking group use an anti-friction stick on their inner thighs to keep from chafing as they walk ...