What a relief it is! I have had hip muscle pain, due to hip replacement, that just would not go away with exercise/ therapy but would make exercise painful to do. I was told I may have to live with it. Having used PMF the muscle finally relaxed. I am able to lift my leg in exercises, walk up hill and go up and down the stairs without it acting up. It has been about two months and staying well. Its been a blessing. Thank you Diane & Mike for encouraging me to stick with it. If you are in pain, give PMF a try, better than taking pills.