My husband is having severe pain in his right foot, toes and heel. His foot is swelling. He just had back surgery and is on medications for pain, muscle relaxer, and a nerve deadener (Robaxin). His foot was hurting like this before his surgery, and they didn t know if it was from the stenois in his back or something else. The other pains he was having before have pretty much gone away, but this pain in his foot lingers on. Do you have any idea what else it could be, or is it related to the nerve damage from his back?