It's allergic rhinitis. You need to take special medicine also avoid exposure to dust and cold air.

These days the weather in Bangalore is constantly changing. We are seeing alot of patients with similar complaints. You can take tablet that you have mentioned for a week. But the best remedy would be to do Salt water/warm water gargling twice daily and to take steam inhalation twice daily. This practice helps in clearing your upper airway from any source of infection and also prevents from further re-infection.