A boil is a painful, pus-filled bump that forms under your skin when your hair follicles become infected by bacteria and get inflamed. A carbuncle is a cluster of boils (furuncles) that form a ...

What is a carbuncle? A carbuncle is a connected group of boils that stem from an infection of the skin. “They are sometimes confused for a spider bite,” said Dr. Allison Arthur, a dermatologist and ...

A boil on the breast develops as a result of an infection of a hair follicle and surrounding skin. Depending on the severity, a doctor may recommend over-the-counter (OTC) treatments or prescription ...