I use them on my shoulders and knees and it does help a bit. I tried to use them on my back which is always so sore and burning and I'm not able to keep them on my back. They come off on their own, night or day. The only med I take for pain is Tylenol Arthritis, I have a lot of bad reactions to pain meds, so I KISS (Keep It Simple, Stupid - me, not you!) I talk to myself a lot, and that is a frequent conversation I have w/ myself - KISS. A lot easier for me to remember lol.
Try them, they may help you. Even w/ insurance they cost me a good bit of $$$.