The nose is not breathable at all may be caused by deviated nasal septum, chronic hypertrophic rhinitis, sinusitis or cold, etc. Patients can take appropriate measures according to different situations, such as cleaning the nasal cavity, using nasal sprays, medication or surgical treatment. 1. Deviated septum: Deviated septum causes narrowing of the nasal passages later on, which is easy to cause nasal congestion, headache, nosebleed and other symptoms. To completely relieve nasal congestion caused by deviated nasal septum, nasal septum correction surgery is needed. 2. Chronic hypertrophic rhinitis: In chronic rhinitis, the inferior turbinate bone is hyperplastic and hypertrophic, and the mucous membrane of the inferior turbinate is hyperplastic and hypertrophic, resulting in poor ventilation. Can follow the doctor’s instructions to use decongestant or hormone nasal spray drugs, such as mometasone furoate nasal spray, tretinoin nasal spray, etc., is conducive to the relief of chronic rhinitis triggered by the situation of the nose. 3. Sinusitis: sinusitis when the inferior turbinate turbinate congestion swelling hypertrophy, sometimes accompanied by herpes turbinate, more likely to cause nasal congestion. Patients can use nasal wash, with saline cleaning nasal cavity, is conducive to the discharge of nasal secretions, nasal congestion symptoms can be relieved. 4. Colds: Cold viruses can cause acute infectious inflammation of the nasal mucosa, local vasospasm, congestion and edema, thus causing nasal congestion. You can eat aminoglutethimide capsule, compound aminophenol alkylamine tablets, etc., which can play the role of antihistamine, reduce the congestion of nasal mucosa, and relieve nasal congestion. In addition, there may be nasal tumors and other causes, should be in the doctor’s diagnosis to determine the cause of the disease after standardizing the use of medication and treatment, not to use their own drugs to avoid aggravating the condition.