Carbuncle

A carbuncle is an abscess larger than a boil, usually with one or more openings draining pus onto the skin. It is usually caused by bacterial infection. Charles, Prince of Wales, once described a proposed redevelopment of Paternoster Square as "like a monstrous carbuncle on the face of a much loved friend," St. Paul's Cathedral.

Abscess: An abscess is a collection of pus collected in a cavity formed by the tissue on the basis of an infectious process (usually caused by bacteria or parasites) or other foreign materials (e.g. bullet wounds). It is a defensive reaction of the tissue to prevent the spread of infectious materials to othe...

Boil: : Boil can also refer to a change in phase from liquid to gas; see boiling point. For other meanings, see Boil (disambiguation)....

Pus: Pus is a whitish-yellow or yellow substance that can be found in regions of bacterial infection, including superficial infections, such as pimples. An accumulation of pus in an enclosed tissue space is known as an abscess....