I had it for a trapped nerve, nothing else worked including increasingly strong painkillers and physio, so they tried acupuncture, my GP did it forst and then I had it with physio and within two treatments I noticed a difference. I'd definately have it done again, I never felt the needles, though I was surprised at how big they were, and it was really relaxing just laid there, I'd have it done for anything if they'd let me!