Patients with dry nose can apply glycerin appropriately, the glycerin mentioned here is edible grade glycerin, not industrial grade glycerin. Edible-grade glycerin has the ability to keep the nasal mucosa moist, reduce the evaporation of water from the nasal mucosa, and has a protective effect on the dryness and erosion of the nasal mucosa, which is more suitable for patients. Glycerin is colorless and tasteless, and will not produce obvious side effects, nor will it cause obvious discomfort in the nasal cavity, and will not affect some metabolism related to the patient’s blood sugar and so on. Therefore, patients with dry nose can apply glycerin appropriately. Patients with dry nose may be related to dry weather, patients’ own physical quality and other factors. Clinically, besides applying glycerin, you can also apply some local erythromycin eye ointment, recombinant bovine alkaline fibroblast growth factor gel and some other medications to treat the treatment may be better. In addition, patients with dry nose are recommended to eat more vegetables and fruits and add more vitamins, which will also have a good effect on the reduction of dry nose.