Nasal mucosa swelling, also known as nasal mucosa enlargement, is most commonly seen in rhinitis. It is an enlargement of the nasal mucosa caused by the irritation of the nasal mucosa due to inflammation in the nasal cavity. In terms of pathological changes in the nasal mucosa, there are chronic simple rhinitis, chronic hypertrophic rhinitis, caseous rhinitis, atrophic rhinitis, etc. In terms of the urgency of onset and duration of the disease, it can be divided into acute rhinitis and chronic rhinitis. So how to prevent swelling of nasal mucosa? 1, pay attention to the work, living environment, clean air, avoid contact with dust and chemical gases, especially harmful gases. 2.Strengthen nutrition, enhance the positive energy. 3.Strengthen exercise and improve physical fitness. Through exercise, the blood circulation can be improved and the blood flow in the nasal turbinates will not be blocked. Regular exercise, 4.Change the bad habit of digging the nose. 5, timely correction of all nasal deformities. Such as deviated nasal septum, etc. 6.Treat the lesion at its root and thoroughly treat chronic diseases such as tonsillitis and sinusitis. 7.Cautiously use nasal mucosal constrictors, especially not for long-term uninterrupted use. (Nasal drops, ephedrine, BITON, furosemide nasal drops, etc.). 8, reduce the stimulation of cold air on the nasal mucosa, pay attention to wear a mask when appropriate. After taking a shower, try to dry your hair before sleeping to avoid catching a cold. 9, pay attention to keep warm, climate change is very easy to catch a cold caused by rhinitis. Watch the weather forecast for the change of seasons and dress appropriately in time. 10, salt water nose wash, can effectively prevent rhinitis.