Fly larvae, or maggots, have been used for centuries to clean and treat wounds. Maggots are enjoying a medical renaissance as more and more doctors are realizing how effective these fly larvae can be. Generally used only to treat wounds that won't respond to conventional medicine, maggots dissolve dead tissue and bacteria. Burns, foot and leg ulcers, and post-operative wounds are the most common maggot-treated injury. Only a few species of fly larvae, primarily blowflies, are suitable for such
Source: M. Berenbaum 1995. Bugs in the System 173-174.