As the blister heals, unwanted surface cells are shed. Cryosurgery involves the same process, but the depth of freezing is much greater. This technique is used to treat some skin cancers, and results in tissue destruction and wound healing with minimal scarring. Curettage and electrodesiccation is a technique in which cancerous tissue is removed under local anesthesia with a sharp surgical instrument called a curette. Electrosurgical equipment is then used to stop the bleeding and to cauterize a zone of normal tissue.
Dandruff is made up of small flakes of dead scalp skin.
It occurs under circumstances in which the surface skin cells of the scalp grow unusually fast. Dermabrasion involves the use of a high-speed rotary abrasive wheel to smooth out skin imperfections such as scars. Folliculitis is a superficial infection of hair follicles caused by bacteria or fungus, characterized by small, white-headed pimples. Hansen's Disease is another term for leprosy. Impetigo is a contagious infection of the skin caused by bacteria.