On The Right Side Of My Face It Hurts. I

on the right side of my face it hurts. I went to the dentist and told me nothing was wrong after having my tooth filled. Now my face hurts, my gums hurts and my teeth are very sensitive. the pain now is working its way up to my cheek bone, my eye and temple area. Tylenol extra strength only helps for about 3 hrs. Hot or cold doesn't both me, it's when I eat! Then the whole right side starts to hurt.