Hidradenitis suppurativa in the armpit is a painful condition that causes boil-like bumps to form and rupture. Scarring may develop, and the lesions are likely to reoccur. Share on Pinterest ...

Typically, armpit rashes aren't dangerous ... Folliculitis will result in red papules, bumps, or even larger boils that can be painful. The rash can also be itchy. How to treat it: Topical ...