Dry nose may be caused by nasal mucous membrane damage, environmental factors, dry rhinitis and other reasons. It can be treated according to different situations. 1. Nasal mucous membrane damage: some people usually like to dig their noses, which can damage the nasal mucous membrane, resulting in nasal infections and symptoms of dryness and pain. You need to avoid picking your nose, rubbing your nose and pinching your nose to avoid traumatic stimulation of the nasal mucosa. 2. Environmental factors: in the dry air of the fall and winter seasons, indoor closed environment, indoor humidity is too small, coupled with little water leading to a lack of water in the body, can cause dry nose. You can use a humidifier appropriately to improve the severity of nasal dryness. 3. Dry rhinitis: due to the environment or the body’s immune causes nasal mucosa, submucosal glands atrophy, so that the normal secretion is reduced, caused by the dryness of the nose. You can smear erythromycin in the nasal cavity or physiological sea salt water rinse nasal cavity, can play to improve the phenomenon of dry nasal discomfort. The reason for the dryness of the nose, may also be atrophic rhinitis and other causes, it is recommended to go to the hospital in time, follow the doctor’s guidance and recommendations for related treatment.