I had shingles 6 years ago, and have been diagnosed with PHN. I have been through 4 pain clinics, 9 nerve bloCks and tried every medicine available, with no relief from the pain. I do not even wear a Shirt at home as it is painful just to have the material touch my chest. I have tried all opiates, and as a result of being put on buprenorphine, I was in the hospital for 6 weeks, and on life support several times, as it completely shut my entire system down. No one seems to know of anything to help with my pain. I am 81 years old, and have a10 pain all the time.