Both Sihui San and Chaihu Shuo Liver San can regulate the liver, but the indications are different, Sihui San is suitable for the evidence of disharmony between the liver and spleen, and Chaihu Shuo Liver San is suitable for the evidence of stagnation of liver qi, so there is no saying which one is better. The main ingredients of Si-Wei San are fried Citrus aurantium, Radix et Rhizoma Glycyrrhizae, Radix Bupleurum Chinense, Radix Bupleurum Chinense, Radix Paeoniae Lactiflorae, which are mainly used to regulate the liver and the spleen, expel and expel evils, and treat the syndrome of disharmony between the liver and the spleen and the syndrome of yang yu syncopation (Yang qi does not flow well and leads to the coldness of the limbs), which is characterized by pain in the epigastrium and abdomen, pain in the distension of the thoracic and hypochondrium, and a stringy pulse. The main ingredients of Chai Hu Shun Liver Essence are Chai Hu, Chen Pi in vinegar, Hovenia Citri Reticulatae, Rhizoma Ligustici Chuanxiong, Radix Paeoniae Alba, Radix Aromatica Sinensis and Radix et Rhizoma Glycyrrhizae Praeparatae, the main function of which is to relieve liver stagnation, promote qi movement and alleviate pain (alleviate pain by regulating the qi in the human body), and the main treatment for the syndrome of Liver-Qi Stagnation with symptoms such as tightness in the chest, distension of the epigastric region and abdomen, pain in the chest and dorsal region, good taiyi, emotional and mental disorders, irritability or depression, and a stringy pulse. Both drugs have Chai Hu, Paeonia lactiflora and Radix et Rhizoma Glycyrrhizae, which have the effect of dispersing the liver and relieving depression. However, in Si-Wei San, there is Bran Fried Hovenia, which can eliminate stagnation, so it focuses more on dispersing the liver and regulating the spleen; while in Chai Hu Shuo Hepatitis San, there are Chen Pi, Rhizoma Ligustici Chuanxiong, and Xiang Fu, which can increase the function of regulating qi, promoting stagnation, and relieving pain, so it focuses more on promoting qi and relieving pain. There is no such thing as which one is better, and you should choose the one that suits your condition. Improper use of Si Reverse San and Chai Hu Shuo Liver San can have side effects such as dizziness and nausea. Children and pregnant women are prohibited; the elderly and breastfeeding women should be cautious. It should be noted that the use of traditional Chinese medicine requires evidence-based treatment and should be used under the guidance of a professional physician.