A skin abscess or boil is a bump on or below the skin’s surface. It may look like a pimple but larger and deeper under the skin. Abscesses usually contain pus or clear fluid and can appear anywhere on ...

Hidradenitis suppurativa (HS), also termed acne inversa, is a chronic inflammatory condition that affects the axilla, perineum, and inguinal regions. 1 Risk factors include obesity and tobacco use.

A cyst is a sac or cavity that may be filled with pus, semi-solid material, or air. It doesn’t usually cause pain until it gets large. An abscess is a painful, red infection that’s filled with pus. A ...