Doctors are the best way. Insist on pain relief and don't leave till you get it. One of my friends even has oxycontin because she talked the doc into it. That's hillbilly heroin in case you didn't know. Stops all feelings.
Trouble is, today many doctors will not treat drug addicts or alcoholics until they are clean.
You say the pain came back when you resumed drinking. I suppose it's too easy to just give up the grog again? I drank for 35 years and gave up overnight as I became violent that last night. You have the same sort of incentive. Stop or suffer the pain.