I recently had a sinus infection.My teeth usually from my sinus infections flare up as well.This time something very strange gas happened.My lower lip to my chin is numb.I do have alot of pain in my ear which is stopped up,my nose and the bone which extends under the eye,the jaw,and under the chin.I do also have TMJ.It is really scaring me.I tried calling my dr but only get come in tomorrow.I want to know now.Its scaring me.I did start a round of Keflex and Ibuprofen for pain.Will I ever get the feeling back?