Learn how doctors use bacon therapy to remove botflies, in this episode of Gross Science from NOVA. Human botflies, also called Dermatobia hominis, are insects from Central and South America that feast on animal flesh. Humans can become infested with botfly larvae through mosquitoes. At first, the infestation, called furuncular myiasis, resembles a bug bite or a pimple, but the bump gets bigger and more painful over time as the larvae grow. There are a few ways to extract botfly larvae, including bacon therapy: raw meat or pork fat is placed over the hole in the skin to coax the parasitic larvae out of their subcutaneous homes. This resource is part of the NOVA: Gross Science Collection.