I used Flonase for a few years and it used to help. Now I have been coughing and gagging on Post Nasal Drip from March '08 until the last 2 weeks. My allergist prescribed me Astelin nasal spray and i has worked much better!!! And boy if I forget to take it....I start getting the drip again. I was told to take it 2 sprays each nostril 2x a day but I only take it once a day.