Hi Jack, It will be 2 years 6/20 post treatment. My mouth gets very dry. I must have water w/me 24/7. It is really a problem when you get stuffed up & can't breath thru your nose! (like gardening:alergy's, cold or crying) So I try not to clean (dust) or garden, get sick or cry! However 2 weeks ago, I was able to eat a choc. ice cream cone. Last year chocolate tasted horrible and I could not swallow the dry cone. So there is a very s l o w improvement!