The effects of Chai Hu Shuo Liver Powder are to relieve liver qi (regulating stagnation of liver qi), invigorate blood circulation and relieve pain (relieving pain by removing blood stasis), and work to treat liver qi stagnation syndrome (the lack of liver qi flow). Chai Hu Shuo Liver Essence is a formula in Chinese medicine that belongs to the category of qi regulators. Its effect is to dredge the liver and regulate qi, activate blood circulation to relieve pain. It is used in treating liver-qi stagnation syndrome, which is characterized by pain in the ribs and thighs, tai hua (often sighing), irritability, emotional upset, belching (commonly known as burping), and distention and fullness in the epigastrium and abdomen. Chronic hepatitis, chronic gastritis, intercostal neuralgia, etc., which are caused by liver depression and stagnation of qi, can be treated with the addition and subtraction of this formula. This formula is aromatic, pungent and dry, and is prone to depletion of qi and injury to yin, so it should not be taken for a long period of time. Chai Hu Shuo Liver Powder should be used after diagnosis by a professional Chinese medicine practitioner, and should not be used blindly on its own to avoid causing adverse reactions.