I know how difficult it is to be bothered by phlegm in your throat. I would like to suggest that it could be an allergy to dairy products. I know we don't like to think about that, but diet has a lot to do with how we feel and the diseases we get. Dairy products would include ice cream, milk products, eggs, cheese, etc. The only thing is, it takes about a month to get these mucus producing products out of our system. But it's worth it if we want to feel better. In the meantime, drink a lot of water to get this waste out of your system. I hope this will help you.