Sijunzi decoction is a prescription handed down from traditional Chinese medicine, and it was first recorded in the Song Dynasty as a "harmonious prescription". Sijunzi decoction uses ginseng, Atractylodes macrocephala, Poria and licorice. Generally speaking, it has the effects of nourishing the stomach and strengthening the spleen, tonifying yang and benefiting qi, and is often used to treat chronic gastritis, gastric and duodenal ulcers, chronic hepatitis, chronic gastroenteritis's disease, anemia, gastrointestinal weakness, anorexia, vomiting, dysentery, weakness and bleeding of the elderly, limb weakness, hemorrhoid, proctoptosis, hemiplegia, enuresis and other syndromes of spleen and stomach deficiency.