Rhinitis is mainly divided into acute rhinitis and chronic rhinitis. Acute rhinitis is usually caused by viral infection, and common chronic rhinitis include atrophic rhinitis, vasomotor rhinitis, dry rhinitis, allergic rhinitis, etc. The causes of different types of rhinitis are different, such as vitamin deficiencies, environmental factors, the environment, heredity and so on. 1. Acute rhinitis: it is usually caused by viral infection, and the common ones are coronavirus, adenovirus, coxsackie virus, respiratory syncytial virus and so on. 2. Atrophic rhinitis: mainly related to endocrine disorders, vitamin deficiency, genetic factors and high blood cholesterol level. 3. Vasomotor rhinitis: this disease is mainly caused by autonomic nervous system dysfunction, while temperature, irritating gases, air pressure, etc. can also induce nasal symptoms. 4. Dry rhinitis: this disease may be related to the environmental climate, general condition, living environment and so on. 5. Allergic rhinitis: it is related to environmental factors and genetic factors. When rhinitis occurs, you can go to the hospital, and the doctor can make a clear diagnosis after systematic examination. Do not pick your nose, try to keep the nasal cavity moist, but also to avoid inhaling second-hand smoke, to reduce the stimulation of the nasal cavity.