Marian. As I posted, I had acupuncture treatment; but not for tendonitis. My experience and that of others I speak to is that it seems to work after the first treatment, but the effects last for a short time. Perhaps not even to the end of the day. After each treatment the effects last a longer time until they are relatively permanent. When I was treated for sciatica, it almost went away completely after the first treatment, but I began to feel it again on the way home. Now it is six months since I had my final treatment and I only feel the symptoms when I really strain my back or upper legs--and then it goes away after a rest.