https://en.wikipedia.org/wiki/Maggot_therapy https://en.wikipedia.org/wiki/Maggot_therapy might be a better analogy - you don't want to lose everything, just to

https://en.wikipedia.org/wiki/Maggot_therapy https://en.wikipedia.org/wiki/Maggot_therapy might be a better analogy - you don't want to lose everything, just to clean out the necrotic bits.