Dry heaving while brushing teeth is most often caused by chronic pharyngitis. If it is accompanied by, for example, itching, dryness or even foreign body sensation in the throat, the diagnosis is basically confirmed. Most of the chronic pharyngitis is due to long-term bad eating habits and lifestyle factors, such as eating spicy and irritating food, love of smoking, drinking, etc., the treatment cycle will be relatively longer. Some patients also need to exclude stomach problems. First of all, we should pay attention to improve the diet as much as possible, in addition to some auxiliary nebulizer inhalation treatment, regular treatment according to the course will have a certain improvement.