T.R.
i get this alot, and last summer i had very bad allergies that caused me a post nasal drip cough, we happened to have my newborn dauhters humidifier in our room since she was still sleeping in our room and after a few nights of it running next to my bed i was practically cured of the runny nose and cough. i use it whenever my daughter gets a runny nose and it seems to clear her up pretty well too. also sleeping with your chest slightly elevated helps some too. keep s everything from settling in your throat. i dont really know of any natural cures tho, have you tried a natural healthfood store like Queens?? they are very knowledgable and would probably know some products that would help.