Avoid common irritants such as cigarette smoke and sudden temperature changes. Drink plenty of water. Use a humidifier. Try nasal saline sprays or rinses. If the runny nose is a persistent, watery discharge, particularly if accompanied by sneezing and itchy or watery eyes, your symptoms may be allergy-related and an over-the-counter antihistamine may help......do warm saline gargling twice a day with OTC medication...Consult nearest physician for clinical examination they will do the needful.