I've had a sore shoulder for about 3 weeks now. It is slowly getting better and I think it was Bursitus. The DR. gave me some medication but it didn't work as well as my under the counter A.C.C. I say under the counter because you have to ask for it because it contains Codeine. I get it at Walmart and it's about $12 and there are 2 kinds. One is Aspirin, Codeine and Caffeine and the other is Tylenol, Codeine and Caffeine. I take the one with aspirin, it might be worth a try?