I just happen to see your post on the immune system in regards to 1 Mg of prednisone. I don't have an answer about that ,but I had PMR for about two years and have Totally weened myself off it. It was very difficult ,because every time I went down in dosage it returned. I decided when I was at about 3-4 mg,I would start reducing my doses by 1/2 mg.The pain would return but for a shorter time than 1mg. As I hit 1-2 mg I started going down in 1/4mg. I stayed at that dose until I felt the pain almost leave. It could be 5 days to 2weeks. My last dose was 1/4 mg and I told my body this is the last you are getting.Thought it might help you, since I know that every time I went down I had a relapse and wanted to go up again on my dosage.