Carbuncle
Carbuncle, in medicine, localized inflammation of tissue under the skin caused by infection. A carbuncle is usually caused by the bacteria Staphylococcus and is larger and more serious than a boil, which results from an inflammation beginning in an infected hair sac. As the carbuncle develops, the area affected becomes red and swells slightly. The subcutaneous tissue becomes hard, the color darkens, and several heads may develop and discharge pus . Tissue is destroyed and sloughs off, leaving a scar upon healing. Treatment includes the use of antibiotics and antiseptics, the application of hot compresses, and, occasionally, surgery.