** Thanks for contacting with your health concern. 1. As the symptoms are there for 8 years, it is possible that the pathology has changed in chronic Rhinosinusitis, so consultation with an otolaryngologist / ENT Physician is essential, till then - steam inhalation to help loosen thick mucus. - regular nasal rinses. - Avoid heavy, slimy and acidic food, curd, mustard oil, excess physical exertion, sunlight-dust areas, exposure to strong winds, day sleeping, smoking, potato, green leafy vegetables. Cold water/food -Take old brown rice, soup of moong dal, black grapes, cow’s or goat milk, garlic, lukewarm water to drink, black pepper, dried ginger, honey.