Myiasis

An infestation by fly larvae, which is primarily restricted to tropical areas. In Africa, the tumbu fly lays eggs on wet clothing left outside; the larvae hatch and penetrate the skin to cause boil-like swellings. Other flies may lay eggs in open wounds, on the skin, or in the ears or nose. Sometimes, larvae penetrate deeply into the tissues. Intestinal infestation can occur after eating contaminated food. Preventative measures include keeping flies away from food, covering open wounds, and ironing clothes that have been dried outdoors. Myiasis of the skin is treated by placing drops of oil over the swelling. The larva comes to the surface, where it can be removed with a needle. In deeper tissues, surgery may be needed. Intestinal myiasis is treated with a laxative.