Sir ...when I am normal...one nostril is blocked...and air come and go through another nostril...then another nostril open and other is blocked...it is continuing since last 1-2 years...how I will be take air in both nostrils...and will recovery from this...I also face frequent cold and nasal congestion 15 days in every month...what is the permanent solution...each time I use allegra and saline nasal spray and Flutira decongestant...sir plz tell me the best treatment for it...do surgery cure it??