Maggot therapy is gross. Saw a video where it was done half-assed in some eastern european country and the dude's leg was crawling with flies and he just died in some tent.
Yeah, it looks gross, but when done properly it can save things from having to be cut off. Lots of people with diabetic ulcers get infections that are completely resistant to antibiotics. No infection can resist being eaten by a maggot though, and they don't harm good tissue. The ones used in proper therapy are sterilized before they're used.
Again, it is gross sounding, but it's been saving a lot of lives.
Problem is, I'm told, is that a lot of doctors are unaware/unwilling to try the treatment. There are different reasons why, some say it's just ignorance, others says it's cause maggots are relatively cheap compared to surgery and antibiotics and doctors don't want to lose out in the money department (although I'm hoping that's only true in a small percentage of the medical profession.)