Hello Dinesh, Thank you for asking at HCM. I went through your history and would like to make suggestions for you as follows: 1. I usually prescribe my such patients regular montelukast & levocetirizine for 30 days minimum. 2. I would suggest you allergy testing, especially for air-borne allergens like house dust mites, common molds and pollens. This will help you identify the substances you may be allergic to and also to know the measures to avoid them. 3. Based on allergy testing, an Allergist-Immunologist may prescribe you allergen specific immunotherapy which gradually improves allergy symptoms by working on immune system. This can be considered as long term solution of allergic rhinitis. 4. In general, I would suggest you to avoid exposure to dusts, smokes and air pollution. 5. A healthy diet rich in vitamins and minerals will also help you in a long run by improving your immunity. Hope above suggestions will be helpful to you. Should you have any further query, please feel free to ask at HCM. Wish you the best of the health ahead. Thank you & Regards.