A boil—medically known as a furuncle—is a common skin infection that occurs when a hair follicle or oil gland becomes infected. A boil usually appears as a red, painful lump that fills up with pus and ...

A boil, also called a furuncle, is an infection of a hair follicle that goes into the deeper layers of skin, causing an abscess (a small pocket of pus). These infections are typically caused by the ...

This causes tiny red bumps to appear ... Gently massage the area to help drain the boil, Zeichner says. Use antimicrobial skin cleansers to help lower levels of bacteria on the skin.