Very interesting Laguna, Thanks for that, it answers a question that has been in my mind for years.
When I was a youngster, we holidayed in Wales and I used to help this old Welsh hill farmer (who was strangely named "Uncle") with various jobs around the farm.
One thing I well remember is going out onto the mountain to check up on the sheep, on several occasions we found sheep that had maggoty wounds, Uncle would sniff the wound, then he would either leave it alone or pour something that smelled like Turpentine over the maggots to remove them.
I never understood why the wounds would not become infected thereafter, but your post has shed some light.
As for smelly Maggots, why not wash them, that is what I do, a quick wash in warm water, then dry them with a old towel and then add fresh dry sawdust, after that riddle the Maggots to remove damp sawdust, add fresh sawdust and the job is a goodun!!
I did write a piece about Maggots, which probably answers most of the questions you ever have about Maggots and how to get the best from them which I sent to the Fishing Magic editor, I suspect he will publish it at some time, so I won't insert sections of it on here!!
But feel free to PM me and I will try and answer all your queries.