My Creamsicle just went through this for the third time. Does Bobby's hair come out as though it were a paint brush, y'know, in little clumps if you can easily tug on it? Cgirl had it so bad, the itching was driving her nuts and she seemed to be overgrooming but she was really trying to soothe the itching. He gave her a depo shot; that cleared the scabs up right away and thus, the itching. He finally had to do a biopsy on her because the shot would only last about a month, then the scabs came back. We've determined it's an allergy and, so far, it seems as though it's the treats that I was giving her. I cut the treats out for now and I'm waiting to see if the shot wears off and the scabs return. You might want to talk to your vet about giving Bobby a depo shot for some relief, poor little guy. My vet says it's so itchy, it's like having poison ivy. Cgirl lost a lot of hair before we got it under control. Her tail was like a little rat's tail and she had a bald spot on the top of her head and on her chest. But it's all grown back now and she's doing really well. Hopefully, a depo shot will help Bobby. Good luck and keep us posted.