Dry and itchy nose may be related to dry air.
In winter and spring, when the indoor air is dry and the outdoor air is dry and cold, the nose may feel dry and itchy. At the beginning of a cold, dry and itchy nose can occur and may be accompanied by sneezing, nasal discharge and sore throat. Allergic rhinitis is also a common cause of dry and itchy nose. It is caused by exposure to allergens such as pollen, mites, fungi, animal hair, etc., which triggers the release of inflammatory mediators such as histamine, thus stimulating the sensory nerve endings of the nasal mucosa, and some people may experience itchiness in the eyes and throat.