I am feeling sore throat for last 1.5 years. Doctor suggested me to go for endoscopy of nose, sinus and throat. After examining he found everything good. One year before I had CT scan of my Sinus and it showed some deviations in some kind of bone in nose (don t actually remember the results). I used the nasal drips, anti acids for 1-2 months. But still I feel some kind of obstruction in my throat. it doesn t pain when I eat, drink anything but it s very annoying. Also some mucus sensation in throat. Please suggest what other factors can cause this.