Medicated rhinitis is a nasal disease caused by incorrect use of medication, or it may be caused by side effects of medication. The symptoms are blockage of both sides of the nose, dry and uncomfortable nasal passages. 1. Etiology. In the treatment of other nasal diseases, the long-term use of ephedrine drugs, over time, the formation of drug rhinitis, resulting in the nose blockage becomes more serious. The use of aerosols, some pharyngitis, asthma patients use aerosols for years, leading to the emergence of drug rhinitis. 2. Treatment. The first step is to stop using ephedrine drugs first, at least for two weeks. Then use other drugs to treat the original disease. Take antihistamines to relieve the reaction brought on by rhinitis. Minimally invasive therapy, before using this therapy, be sure to ask the doctor at the regular hospital beforehand if this therapy is applicable to you. 3. Prevention. Try to minimize exposure to harmful gases. Dust, etc. Even if contacted, it is necessary to take protective measures. Pay attention to the dosage and time of medication, not too much, so as not to cause drug rhinitis, do not often use nasal drops net. Some patients with rhinitis often use nasal drops, after which not only the primary nasal disease is not cured, but also leads to a new nasal disease. All patients must be careful not to overdo it when using medication.