my grandfather recently got shingles he is in severe pain and the morphine tablets only work for a short period ive been researching different drugs and ive read that marijuana helps with pain in the nerve system eg. Where morphine fails, marijuana may work. That's the major finding of British research into the pain caused by nerve injuries, a pain known to be somewhat resistant to morphine and similar drugs that are the gold standard for treating just about any other kind of serious pain. just wanted to know if anyone has an opinion on that and also what strain of marijuana would be the best to grow for pain relief??