Q. Whenever I have post nasal drip, the problem gets worse. Doesn't that show that it comes from the sinuses? Q. Can I still use my regular toothpaste and mouthwash if I use Chlorine Dioxide rinse? Q. Do I have to do this treatment for the rest of my life? Q. Once in a while I get these small white round dots that appear on my tonsils and sometimes I even cough them up. They have an extremely strong odor. What are they and is this related to my breath and taste disorder?