Allergic rhinitis nose wash varies from person to person, mainly using saline or physiological seawater nasal spray rinsing nasal cavity, generally 1~2 times/day, symptoms can be stopped after relief rinsing. Allergic rhinitis is also known as allergic rhinitis, nasal saline rinse can improve the microenvironment of the nasal mucosa, relieve symptoms, generally use saline, etc., 1~2 times a day, the use of the length of time there is no clear limit, but it is not recommended to use too often or too much strength, or there may be damage to the nasal mucosa, as well as disrupt the balance of the nasal flora, destroy the nasal immune barrier. It is recommended to rinse the nasal cavity after the guidance of a doctor, need to use a special nasal rinser, while rinsing the nasal cavity when the action should be gentle, if there is discomfort in time to stop rinsing, and go to the hospital for examination.