This is day 3, and I am feeling better, still have the ache / numb in my knee area and down the shin of right leg (the TKR leg) at 7 PM on a clock, but it's less... I have not taken tylenol, it's 3:30 our time in the afternoon but I will probably in a little bit, to get me thru the evening. I took our dog to the hospital, and did the Pet Therapy, was able to walk around the hospital with her, first time in 2 weeks... without much pain. I think it's working, they called and wanted to know if I wanted a second one, which I would have a week from Monday, 2 weeks after the 1st one. Thinking about it... stay tuned, more updates...