What about ultrasound? After a few months of so much pain that I actually lost control and self-control, I tried ultrasound with a physiotherapist. She told me that the muscles in my back were so tense that they couldn't move. She thought that was a contributing factor to the extreme pain. After one treatment, I could feel a difference and I'm looking forward to the next treatment. I think that as long as the muscles are so tense, they can't be trained!