Rhinitis is categorized into acute rhinitis, chronic rhinitis and allergic rhinitis, with different causes, clinical manifestations and treatments. Acute rhinitis is a kind of upper respiratory tract infection caused by viral infection, which often occurs during seasonal changes. Chronic rhinitis is caused by repeated episodes of acute rhinitis. At the beginning of acute rhinitis, the nose is dry, itchy and uncomfortable, followed by nasal congestion and watery nasal discharge. If there is a bacterial infection, the nasal discharge will be purulent, and the ears will feel blocked. Chronic rhinitis is characterized by nasal congestion, increased secretion, and recurrent episodes lasting several months. Acute rhinitis treatment is mainly symptomatic and causative treatment, and actively prevent complications. Chronic rhinitis is treated with a comprehensive treatment strategy, with medication and surgery as the main treatment. Commonly used drugs include nasal glucocorticosteroids such as budesonide spray. Allergic rhinitis: Allergic rhinitis is an allergic reaction of the nasal mucosa to many substances, the most common of which are pollen, mold, dust or animal dander. Symptoms include nasal congestion and runny nose, conjunctival congestion, itching, tearing and mucus secretion, frequent sneezing, and allergic inflammatory reactions in the throat and skin. Treatment focuses on avoiding exposure to allergens and anti-allergy therapy. If symptoms related to rhinitis appear, it is recommended to consult a doctor in time to find out the cause of the disease, and take medication and treatment under the guidance of the doctor.