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. First of all, I would like to know whether his difficulty in breathing is due to nose obstruction or constrictions of bronchial tubes. As the treatment differs for both. 2. as he is snoring also, I would first think of nose/upper airway obstruction. I usually prescribe my such patients regular montelukast + levocetirizine till nose symptoms improve, usually for 2-4 weeks. 3. If he has shortness of breath, whistling sound from chest (wheezing), etc, I would suggest him sabutamol/levosalbutamol inhaler on as-and-when-needed basis. 4. Regular steam inhalation will help him for improving nose symptoms. 5. For diagnosis of allergy, I would suggest him allergy skin 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 causing allergies to him as well as to know the measures to avoid them. 6. Based on allergy testing, an Allergist-Immunologist may also prescribe him allergen specific immunotherapy which works on immune system to gradually improve allergy symptoms. 7. In general, I would suggest him to avoid exposure to dusts, smokes and air pollution as much as possible. 8. Regular physical exercise including Yoga, Pranayama and breathing exercises as well as nutritious diet rich in vitamins & minerals will also help in a long run by improving his lung capacity and immunity respectively. Hope above suggestions will be helpful to him. 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.