You may find list on HCM or other portals but I would suggest if you can find some Ayurveda medications to be used alongside your pain management specialist, you will have immense benefit.. My three decades Ayurveda practice experience has prompted me to advise you Triphala capsules, Rumya forte tablets 1 bid orally (to be raised upon tolerance to 1 tid and may be lowered again) and light massage of Rumalya liniment over lower back, preferably after hot fomentation. These are safe, long use medicines from Himalya who are pioneer in Ayurveda medicines. I would say you to do deep breathing and Yoga postures and meditation too. Start from 5 minutes a day and raise to 15 minutes in a week. Hope it helps you. It will.