I had three treatments in physical therapy (days apart) on my feet and hands. It seemed to help, so I bought a unit. Since then I have tried it once or twice a day for about ten days. So far, it hasn't seemed to help. In fact, it may be making it worse. I am going off of it for a few days to see if I notice a difference. I submitted the cost to my insurance, so I will see soon if they will pay for it. I couldn't get an answer from my insurance company when I called them. I will keep everyone updated.