Well, things were getting slightly better, the sores were healing and the scabs coming off. I ran out of meds and knew I had to take another pet in the next day, so we skipped the meds for JUST 24 hours. OMG, POOR BOBBY.

Right now he is:
wearing an e collar (been on 5 weeks)
eating z/d low allergen food
taking chlor tri meton 2 mg twice per day
taking cefa drops 1.5 ml once per day

I think a flair up like this in 24 ours means the food is not the problem!

Here are the pics. They are a bit graphic.
This is just the top of his back. He is like this head to tail!





We had a skin scraping, there are NO mites.
Anyone have any ideas? Should I take him in to the vet tomorrow (Friday) to let him see what happened in the 24 hour laspe (which the vet does NOT know I stopped the meds for 24 hours.)