my father is suffering from back lower pain since 4 months , father was slipped down in his bathroom, and as per the xray report he has no en gory in his back spinal cord, local dr, chabra is giving some medicine to him like IMORIL BMG,ULTRACET,PREGABID,OMEZ, but he has no any pain releaf till now, father is suffering from daebities and b.p.,problem but these deseases are undercontrol,his age is 79, please suggest me the pain releaf medicines or any other treatment.