
A carbuncle is a red, swollen, painful cluster of boils that are connected to each other deeper under the skin .===* A boil (or furuncle) is an infection of a hair follicle that has a small collection of pus (called an abscess) under the skin. * A carbuncle is larger than a single boil, measuring up to 4 inches across. * A carbuncle usually has one or more openings that drain pus onto the skin....