got done rct (almost 1 year ago), rct was done in the lower jaw line teeth back side, now for the last 15 days, sometimes though, she is feeling nerve pain in jawline in cheek and upto below ear; which moves to temple area and almost near the ear (left hand side ear) and pain in the place where upper jaw and lower jaw meet. Also, there is no pain in chewing food in the teeth (2 teeth) in which rct was done; but at the same time (especially in night time) there is pain as told above. After chewing herbs ajwain, pain finishes. Please suggest what could be reason and suggest some medicine to get rid of this pain.