I had a tooth pulled two weeks ago and they said my sinus was open. I had problems and went back in 3 days later and was told I had ulcers so they gave me a mouth wash. Today I was smelling something and I heard a pop! I got a major headache within 20 mins and I am in pain. I can't talk without it making some type of noise from from hole in my mouth to up under my eye by my nose. Please help!!!