After a half hour I had full range of motion in my shoulder again without much pain. Over the next week the pain continued to subside with the use of a patch cut to fit. The next week I used less of the patch. by the third week I had no need for it. The pain was all gone. It flared up again a few days later, and I put a quarter of a patch on and felt it work instantly. To test it I picked up some weights. It was amazing. I felt like I had a bionic shoulder. Stronger than the one with no arthritis.