are you able to look into alternative care?
non medication types?
like-
acupuncture, reflexology, homeopathy, hypnosis, INF stim, low level laser, etc.
possibly even a chiropractor that might specialize in chronic /myofascial pain

useful links to many of those topics on TOS forum- post #1
http://neurotalk.psychcentral.com/showthread.php?t=84