Nose airlessness may be due to allergic rhinitis, colds, deviated septum, nasal polyps, nasopharyngeal carcinoma, etc., which need to be treated with medication or surgery for the cause. 1. Allergic rhinitis: it can be treated with budesonide nasal spray, loratadine, montelukast sodium and other drugs. 2. Colds: viral infection of the respiratory mucosa leads to acute inflammatory reaction, nasal exudation increases and the nose is not breathable. Common colds can be treated with pseudoephedrine hydrochloride, chlorpheniramine maleate, ibuprofen, etc. Influenza can be treated with antiviral drugs such as ganciclovir and ribavirin. 3. Deviated nasal septum: The nasal septum is deviated due to congenital developmental abnormality or acquired trauma, which leads to narrowing of the nasal cavity and airlessness of the nose, and it can be treated by endonasal endoscopic surgery. 4. Nasal polyps: benign hyperplasia of nasal mucosa leads to nasal cavity occupation and airlessness, which can be treated by endonasal endoscopic polypectomy. 5. Nasopharyngeal carcinoma: malignant proliferation of nasopharyngeal tissues leads to changes such as hemorrhage and occupancy of nasal cavity, so the nose is airless, which can be treated by radiotherapy. After the onset of the disease, you should actively seek medical treatment to clarify the diagnosis, and then use medicine and treatment under the guidance of physicians.