Hello. Thank you for asking at HCM. I went through your history and your query. I can understand your concern. I would like to make following suggestions to you: 1. If you have sneezing, itching and running nose, you can ask for any over-the-counter antihistamine drug. They can be cetirizine, levocetirizine, fexofenadine, loratidine, or others. You can take montelukast in addition to the antihistamine drug. This will be equivalent to L-montus. Any local doctor or pharmacist will able to help you in this regard. 2. Unicontin-400 mg contains theophylline, which is used for asthma and is not a safe drug to be used without doctor s prescription. It has many side effects including gastric, cardiovascular and nervous side effects. If you don t have asthma symptoms, you don t need it also. So I would never suggest you to take it by yourself without medical supervision. 3. I would also suggest you to avoid exposure to dusts, smokes and air pollution as much as possible. This will help. Hope above suggestions will be helpful to you and solves your query. Should you have any further query, please feel free to ask at HCM. Wish you the best of the health. Thank you & Regards.