Thank you for your encouraging words. I do appreciate the posts by the person who was pointing out that testing for AIDS is a good idea but I don't have the other symptoms nor do I engage in risky behaviour.
I am more and more concluding that this is a histamine reaction (brought on or exacerbated by taking super high systemic enzymes). They do not resemble either herpes or shingles blisters and the ones which have scabs (from being scratched even lightly through my clothing until they bled... ) are not "ulcers" or "blisters full of fluid" but are just little scabs that do not hurt at all. The only sensation this rash has provided is intermittent intense itching and dread when I imagine all the horrible possibilities about what it is.