I Have A Bulging Disc In My L5 With A

I have a bulging disc in my L5 with a nerve impinging on it.. I am going to pain management and am on my second round of shots with no positive results. Can you tell me if there is any medication that can ease the nerve pain. I take morphine sulfate and doxycycline 10mg as needed. Neither of these. Things touch the pain that is traveling down my leg. Any meds you can recommend ?