Hi @granger, how much prednisone are you currently taking? In the chapter on PMR and GCA in Cecil and Goldman's Text Book of Medicine, the proper dosage of prednisone is supposed to dramatically reduce the pain of PMR. I was diagnosed with Giant Cell Arteritis so put on 40 mg of prednisone, which I reduced by 5 mg every two weeks. The rheumatologist told me to go back up to the previous dose if my pain came back, for two weeks, then try to go back down again.
Is it possible for you to talk to the doctor who gave you the prescription? Maybe your prescription needs to be tweaked. You shouldn't be left to manage this on your own.