Dry nostrils may be related to acute rhinitis, atrophic rhinitis, dry rhinitis and other causes, which can be moisturized by local treatment, surgery and medication. 1. Acute rhinitis: viral infection of the nasal mucosa can cause acute inflammation, which leads to dry nostrils. The dryness of the nostrils can be relieved by localized treatment, such as applying physiological seawater nasal spray. 2. Atrophic rhinitis: due to the atrophy of the nasal mucosa, the exudative and secretory functions of the nasal cavity will also decrease, thus leading to dry nostrils. You can improve the phenomenon of dry nostrils by applying oil of hexenestrol tablets and 50% dextrose to the nose. 3. Dry rhinitis: dry rhinitis is caused when the secretion function of nasal mucosa decreases, which leads to dry nostrils. It can be treated with medication, such as compound menthol nose drops, to relieve the phenomenon of dry nostrils. It is recommended that the patient go to the hospital in time, after the cause of the disease is clear and correct treatment, the specific drugs need to be used under the guidance of the doctor.