I had all of my upper teeth removed six months ago. Ever since then I have had a burning in my nose along with a smell of something rotten, I also taste something i cant explain. I went back to the dentist that pulled my teeth, he took an x-ray and that showed something in my right sinus. He did not know what it was or could be. If someone has a clue of what this is or could be I would appreciate hearing from you.