Chronic rhinitis is a chronic inflammation of the mucous membrane and submucous layer of the nasal cavity. It is divided into chronic simple rhinitis and chronic hypertrophic rhinitis. The common causes of chronic rhinitis include: 1. local causes: recurrent attacks of acute rhinitis or incomplete treatment, chronic inflammation of the nasal cavity or sinuses, nasal anatomical variation and tumors, inappropriate nasal medication or overdose for too long to form a drug rhinitis, etc. 2, systemic etiology: long-term chronic diseases, vitamin deficiency, excessive smoking and alcohol, endocrine disorders, etc. 3, occupational and environmental factors. Chronic rhinitis clinical manifestations are: 1, nasal congestion: simple rhinitis nasal congestion is light, intermittent or alternating nasal congestion, while hypertrophic rhinitis nasal congestion is heavy, mostly persistent. 2.Sense of smell is reduced to varying degrees, and speech is occlusive nasal sound. 3.Nasal snot can flow backward into the pharyngeal cavity, and symptoms such as cough and phlegm appear. 4.Much snot: often mucus or mucopurulent, occasionally purulent. The purulent ones mostly appear after secondary infection. 5, hypertrophic rhinitis can also appear tinnitus, hearing loss, as well as dizziness, insomnia, mental depression, etc. How to treat chronic rhinitis? At present, the following treatment measures can be taken: 1, vasoconstrictor nasal drops and local glucocorticoid nasal spray. 2.Physical therapy. 3.Identify the causes related to the disease and treat them in time. 4. Exercise to strengthen the body’s resistance. How to prevent rhinitis? The following points should be noted to prevent rhinitis: first of all, the nasal cavity and nasal mucosa must be protected, winter masks should be prepared to avoid sand and wind, to retain bacteria; avoid contact with allergens; winter indoor humidity and fresh air should be maintained; diet and living at regular intervals, quit smoking and drinking, pay attention to oral hygiene, eat less irritating food; the most positive way is to strengthen physical exercise, enhance physical fitness, strengthen the nasal cavity to resist disease. The most positive way is to strengthen physical exercise, enhance physical fitness and strengthen the nasal cavity’s resistance to cold; actively treat and remove nasal and adjacent infections.