I used Voltarin (sp?) a couple of times. Seemed to work for me.
Be careful with that stuff if you have any other issues. Ortho guy recommended it and I used it as instructed for a couple of months. Cardiologist ordered routine bloodwork and found it was affecting kidney function. Although it's topical apparently it goes into your bloodstream. I stopped it and kidney function returned to normal range after a month. I'm sure it affects everybody differently. It did work when I was using it.