The most common reason for sleeping with an itchy nose at night is because of allergic rhinitis. Because one is allergic, exposure to allergens in the room, with dust mites being the most common, leads to itchy nasal passages, which may also be accompanied by sneezing and a clear runny nose. If this is the case, it is best to clean the room of dust daily and open the windows more often to reduce the exposure to allergens. If the sneezing is more obvious, you can spray co-solvadex to relieve the symptoms. Another condition, eczema-like changes in the mucous membrane of the nasal cavity caused by frequent nostril picking, may also cause nostril itching. Many of them are caused by sneezing due to nasal irritation caused by cold air, dirty things, and lint-like things entering the nasal cavity, and this condition is most common in clinical practice.