For the last or two years when the weather changes or anything the right side of my face would swell and I will be in pain but every time I go to the dr or ER over it they tell me it's a toothache but my teeth don't hurt it only hurts up beside my nose and by my eye like it's my sinus..I went to the dr the other day and I told him bout what was going on and he gave me cefdinir 300mg capsule and I been on them for 3 days and tonight I'm hurting really badly I have never been in so much pain and when I cough it hurts..does anyone know what this could be??