Maggot therapy growing

Maggot Therapy Gains in Popularity | LiveScience

Juvenile larvae are used, because that is the stage of the animal that feeds on dead tissue. The maggots
do not actually eat dead tissue in the way we think of it, nor is it
specifically their "eating" that benefits the wound, Sherman said.

"They liquefy or dissolve the dead tissue (by secreting their digestive
enzymes into the wound), so the wound is debrided [cleaned] whether the
liquefied tissue and debris is eaten or simply drains out of the
wound," he said.