I did once, but for the cost I have to wait on wokmans Comp for more.... They took 3 or 4 days to kick in and was bliss for about 5 weeks! Now due to cost when I am in a major flare I get trigger point injections... done by somebody who knows what they are doing these start working in minutes and the flare is sttled for a bit...only problem being bi-lateral I end up getting stuck in 8-10 places... but the pain is worth the gain>>>>>>> peace unto all !!!!

Markn- goober