Right-sided pain under the armpit may be due to muscle strain, infections, or skin conditions. Sometimes, armpit pain may indicate a more serious issue, such as cancer or a heart issue. The armpit ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Picture this: you’re sitting at your desk when all of a sudden you feel a very tender, large pimple ...

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 ...

Blind pimples—typically a form of cystic or nodular acne—are deep, painful pimples that form under the skin. They are called blind pimples because they lack the visible head that occurs with other ...

There are several causes of pain in the breast and armpit. Some of the most common causes include hormonal changes, an ill-fitting bra, or a muscle strain. Share on Pinterest Yauheni Rak/Getty Images ...