I don't kn the dr at all ,that's my other problem,and if it don't work what they do next ,the plan was physical therapy and acupuncture then all suddenly she changed it ,I have alot of health problems and my body doesn't do good with alot of meds ,last time a reg nerve block didnt work couple years ago,then had rotator cuff surgery and the block they used was supposed to wear off in 8 hours ended up 24 hour later still was numb,wen wore off I was screaming in sever pain.thank u for help