I continue to have drainage (clear) in my nose. I have been to an allergy Dr, did blood work and I am allergic to NOTHING. They sent me to and ENT Dr..they sent me for a sinus scan.....said looks like there are problems with my molars.......could this be causing drainage? DNT Dr suggested I see my dentist.....dentist is sending me to an Endodontic. This is so crazy!!! I have been to a Periodonist several times in the last few years....had a gum graph on the front of my teeth for reseeding gum line....and now wear invisalign braces. looks like one of these would have seen a problem with my molars. What else could be causing the drainage?