Thanks Echoes. I'll call my doctor on Monday. My husband uses Naproxen for back pain and I've been taking his - it's not even putting a dent on the pain. I have a feeling I'll need the cortisone shots again. When I had it before, I couldn't even raise my arm higher than my shoulder or put my hand on my hip - it was the worse pain I've ever had. I'm doing the exercises from last time. Thanks for your reply.