Dry nose may be related to dry air, atrophic rhinitis, dry rhinitis and other causes. You can use a humidifier, take vitamin A orally, and use compound peppermint nose drops to improve dry nose. 1. Dry air: When the air is too dry, inhaling dry air for a long time will easily lead to insufficient nasal secretion causing dry nose. You can use a humidifier to increase the humidity of the air and relieve the symptoms of dry nose. 2. Atrophic rhinitis: atrophy of the glands leads to atrophy of the nasal mucosa and a decrease in nasal secretions, which leads to a dry nose. You can take vitamin A, vitamin B2, vitamin C, vitamin E, etc. to relieve the symptoms of dry nose. 3. Dry rhinitis: the presence of a large amount of dust in the air, haze, etc. will make the nose inhalation of air and recycling of water ability to weaken, resulting in dry nasal mucosa, dry rhinitis, causing dry nose. You can use compound peppermint nose drops to improve dry symptoms. It is recommended that patients with dry nose take it under the guidance of a doctor, and standardize the treatment after clarifying the cause of the disease.