Hi, I have what seems like continuous nasal drip down my throat which makes my saliva very slimy and it bothers my throat, its like this mucus is getting stuck in my throat and I need to clear my throat all the time. I have had this symptom every day for the past year or so. I went to see an ENT and he could not explain why this was happening, he suggested that it might be due to acid reflux, I took nexium for 30 days and it did not help, I even had a gastroscopy/endoscopy and everything seemed fine. In the past 2 days, I feel this film in my throat and upper respiratory tract and when I breath in and out I feel this film and as if I am not breathing normally. How can I get rid of this.