Any info on treatment for temporal arteritis after 2 years onset. Mother dx in Jan’09 and still with severe symptoms with tapering of prednisone. Now at 20 mg, but with headaches, stomach problems-nausea, weakness, and generally not feeling well. Any info would be helpful? Has anyone been cured and completely off prednisone and how long did it take. My mother is 89 and is becoming very frail, shakey, and weak.