Unilateral hidden pain in the ribs belongs to the category of dystocia (pain in the area of dystocia and ribs) in traditional Chinese medicine, and can be treated with medicines such as Xiao Chaihu Granules. Hidden pain in the ribcage caused by deficiency of liver yin is often characterized by incessant pain, aggravated by exertion, accompanied by dry mouth and pharynx, astigmatism, heartburn, dizziness and dizziness, with a red tongue with little moss, and a stringy and fine pulse. Xiao Chaihu Granules is composed of Chaihu, Jiang Hanxia, Scutellaria and other drugs. It has the efficacy of relieving exterior heat (relieving exterior evils to relieve heat), dredging the liver and harmonizing the stomach (dredging the liver to harmonize the spleen and stomach). It is used in treating exogenous diseases with symptoms such as cold and heat exchanges (the body is hot and cold at the same time), bitter fullness in the chest and hypochondrium (the front and both sides of the chest feel distended and uncomfortable), and loss of appetite. Avoid smoking, alcohol, spicy, cold and greasy food. It is not advisable to take tonic Chinese medicine at the same time. If there are symptoms, it is recommended to consult a doctor in time, do not use the medicine by yourself, in order to avoid the occurrence of related adverse reactions.