Excessive stomach acid may be caused by internal obstruction of cold and dampness, and liver qi offending the stomach (poor liver qi affecting the function of the stomach). It can be treated by taking some herbal prescriptions that nourish the stomach and regulate the functions of the spleen and stomach. 1. Cold-dampness internal obstruction: patients often have symptoms such as frequent acid swallowing (swallowing the acid in the stomach that rushes up to the oropharynx), fullness in the chest, and loose stools, etc. It is recommended to use Xiangsha Liujunzi Tang plus subtractions, Si Junzi Tang, etc. for treatment. 2. Liver qi offending the stomach (liver qi is not smooth and affects the function of the stomach): symptoms such as acid swallowing and burning in the stomach are often seen, and it is recommended to use Half-summer Laxative Heart Soup, Half-summer Hau-Pu Soup and so on for treatment. The treatment of hyperacidity is mainly related to the associated causes and symptoms, and requires the selection of appropriate Chinese herbal formulae after an interview and diagnosis by a Chinese medicine practitioner. For patients with excessive stomach acid, in addition to choosing medication, you also need to pay more attention to dietary structure adjustment, exercise, etc., which can play a supplementary role in the treatment.