If you have a throat that feels itchy at night when you sleep, first consider the possibility that it is caused by allergic pharyngitis. In the case of allergic pharyngitis, there is often an allergic body with a history of allergic rhinitis, allergic conjunctivitis, skin urticaria or other skin allergic diseases. If it is allergic pharyngitis causing itchy throat, you need to take anti-allergy medication and need to find the allergen, avoid contact after clarifying the allergen, and get out of the allergic environment in order to solve the itchy throat situation. If the itchy throat is caused by lying down, it is also necessary to consider the possibility of gastroesophageal reflux laryngitis. The specific situation needs to be examined at the Department of Otolaryngology and treated under the guidance of a doctor after a clear diagnosis.