Hello, Thank you for asking at HCM. I went through your son s history and would like to make suggestions for him as follows: 1. I usually suggest my such patients regular montelukast, levocetirizine and inhaled corticosteroids for at least 6 weeks. Then further continuation of medicines could be decided after evaluation of his condition. I also suggest my patients to use salbutamol inhaler on as-and-when-needed basis for asthma symptoms that may occur in between. 2. I would suggest your son allergy testing for common air-borne allergens such as house dust mites, molds, pollens, insect proteins, pet dander (if you have pet). This will help you identify the substances causing allergies to him as well as to know the measures to avoid them. 3. Based on allergy testing, an Allergist-Immunologist may prescribe him allergen specific immunotherapy which gradually improves his symptoms of allergies over long time. 4. In general, I would suggest him to avoid exposure to dusts, smokes and air pollution as much as possible. Hope above suggestions will be helpful to you. Should you have any further query, please feel free to ask at HCM. Wish your son the best of the health ahead. Thank you & Regards.