Sorry to hear of all that. Sounds horrible. I don't know. Pinworms come to mind; I've read they are prolific and infest bedding.
I ran across someone who said Ben-Gay kills worms when they come out of the skin. I imagine there may be better things, but it might be worth a try if you have some handy.
I haven't had skin issues, but I run across a lot of people talking about them in the forums... a search might turn up some info or an active thread discussing similar symptoms. If I remember right, Mattk3 said DEC stopped his migrans quickly.