Mini, don't they also use leeches in medicine? Thought I had read somewhere that they are used to reduce 'pooled' blood under the skin surface to help with healing.
As gross as we think maggots might be, there's likely a lot of other things that we are so used to seeing/using that would gross us out too, if we really thought about it. Not like the maggots crawled out of your garbage can or sink drain......they are raised in sterile environments and more healthy than 'kiss and make it better'