I never thought that this thing could possibly work. I'm really surprised that it did. I must qualify this statement, however.Over the past week, or so, I have been suffering with what I believe is a minor sciatica attack. Why minor? Because it's only been affecting my lower leg, from the knee down. Ordinarily, a full blown sciatica attack would effect from the hip all the way to my ankle.Fortunately it was this rather minor type of attack, but I really am shocked that this device worked. It wor...