I have what I have come to believe is post nasal drip for over a year now, although it hasn't been confirmed by any medical specialist. I am constantly snorting, hacking and coughing throughout each day. every once in a while I'll cough up these stinky white balls that I believe are called tonsilloliths. some days it seems slightly worse than others, but every day for over a year now I've suffered with this. My question is how to go about handling this. I feel as though it might be I have an allergy to lactose, but I fear the thought of giving up all milk products. What should I do? Should I give up milk to see if thats the cause of my problems? How long must I give it up to know whether its the cause? What if it is the cause? Is there some sort of way I can better handle milk products if they are causing this problem? Thank you to anyone who can share their advice on this matter.