My nostrils remain block, feel pain in ears, face, feel laziness, could not concentrate on work. When in air-conditioned rooms and cold environment problem increases. Eating cold food items and cold drinks increase symptoms. Curd, lassi, orange juice, carrot juice, radish increases problem. I have tried homeopathy and ayurvedic treatments. They only suppress the symptoms but does not cure the disease. I have allopathic medicines and nasal sp rays but there is no relief. Now I am thinking of Functional endoscopic sinus surgery. Can FESS treat my condition. What is the cost of Surgery. Please advise.