I can’t say enough about these patches. I have pretty severe pain in my hips and back and had some muscle pulls in my rib area. My pain was pretty bad. I put these on and they seemed to work very quickly and got better throughout the day. By the end of the day, this pain I have been struggling with for over a week was nearly gone. I was very skeptical at first that this would really do anything at all. Very grateful for the pain relief.