A.C.
How's your head? When I'm getting a sinus infection my teeth hurt worse than anything else in my head. I can feel it right above my molars on whichever side is more clogged. Try some decongestant & see if that works. If you don't want to take meds, use a sinus rinse or Neti Pot, or try some hot tea-that loosens the sinus funk up.
I hope the pain eases for you soon!