I thought about a week or 10 days ago I had an allergic reaction to azithromycin and that it caused my right cheekbone and under my right eye to go numb. I since quit taking that medicine and it is still somewhat numb feeling especially when I smile or I blink. Is it anything serious? I have had a bad sinus infection for a while and I just didn't know if it is related to it or if it is something else. Any help would be appreciated.