Hello, Thank you for asking at HCM. I went through your history and would like to make suggestions for you as follows: 1. As an Allergist-Immunologist, I would suggest you allergy testing for common air-borne allergens such as house dust mites, molds, pollens, insect proteins, animal dander, etc. This will help you identify the substances you may be allergic to and also to know the measures to avoid them. 2. Based on allergy testing, an Allergist-Immunologist may prescribe you allergen specific immunotherapy which works on immune system to gradually improve allergy symptoms over long duration. 3. Treatment of rhinosinusitis requires a lot of patience and care. Regular steam inhalation, usually twice a day, is very helpful in rhinosinusitis. 4. I also prescribe my such patients regular montelukast + Levocetirizine (Telecast L that you are using) for long periods. 5. X-rays pick up changes in sinus cavity very late, so I usually do not suggest repeated X-rays to decide treatment. 6. I would also suggest you regular breathing exercises like Pranayama which may help over a long time. 7. In general, please avoid exposure to dusts, smokes and air pollution as much as possible. 8. Regular healthy dietary habits like a diet rich in vitamins, minerals and antioxidants, adequate fluids during day to maintain hydration and light diet may also help you in a long run to improve your overall health. 9. Cold air does not cause allergy , but it acts as an irritant. So it is always advisable to avoid exposure to cold air by adequate covering nose and ear openings as well as scalp by proper clothing. 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.