My son, age 37, has had L2 and L3 disk problems for several years. He lifted too much a week ago. He had extreme spasms in thigh and down to foot. Thigh quivers. Hurts to stand or walk. When to chiropractor the next day, that didn t help. Went to ER yesterday where he was given 2 shots, one was a steroid, the other a muscle relaxer and a prescription for IBU 800 and a muscle relaxer (don t know what kind) Pain is worse today. What should he do?