I tried that stuff as recommended by a chiropractor. It did nothing after a number of weeks. The cost was all out-of-pocket. After I had finished half the scheduled treatments. we sat down and I told him that I had no improvement. Now, here's the good part... he said there was no point in going on and would issue a refund for the unused treatments. When was the last time anyone got a refund from a medical practitioner? Kudos to him!