The experts should let you know its meant to be used prior to it spreading to other locations than the original injury location. You go above the injured area on a meaty/fatty (Im very thin at the foot/ankle) about 3/4 fingers above injury & you go daily until pain is decreased or gone. I hv RSD in my left ankle that shoots up my leg & makes my entire body jerk when it attacks. After 10 consecutive (excluding weekends) treatments, my pain level has decreased significantly & sharp attacks which could last for dayshv stopped. You hv to be committed & hv patience but I would advise everyone with localized RSD to try this. I was also told by my physicians that it doesnt work on fibromyalgia