Ugh 7 months of prednisone, I feel for you (my first pred run was 8 months before I started tapering). For me it was dose number 5 where I started to feel definite improvement. It varies but generally if its not working by about dose 5 it is not for you. Many people I talk to feel improvement on dose 2 or 3. remission is usually a longer process though. Hopefully all went well and it works for you.