The causes of each type of rhinitis in babies are different and are mainly analyzed as follows: 1. Allergic rhinitis, which is mainly caused by the patient’s nasal contact with allergic substances, commonly dust mites, pollen, animal fur, etc., which enter the nasal cavity and induce a rapid-onset metamorphosis of the nasal cavity. The manifestation is sneezing, runny nose, itchy nose and other related symptoms, mainly due to allergens.2. Acute rhinitis, mainly induced by viral infections in the nasal cavity, resulting in, also known as the common cold.3. Dry rhinitis, mainly related to the weather, climate may have, such as dry days easily induced by the patient’s nose dry. Some patients are prone to fire, constipation, eating very few vegetables and fruits, and other factors may also be related.4. Other reasons, some patients have chronic rhinitis, which may be related to temperature changes, weather, temperature changes, air pollution, environmental changes, and other factors may be related.