Chai Hu Dried Ginger Soup usually refers to Chai Hu Gui Zhi Dried Ginger Soup, which is a traditional Chinese medicine formula with the effects of harmonizing and dispersing cold, generating fluids and astringing yin. Chai Hu Gui Zhi Gan Jiang Tang belongs to the category of proprietary Chinese medicines, which consists of Chai Hu, Gui Zhi, Gan Jiang, Juniperus communis root, Scutellaria baicalensis, Oyster, Licorice and other medicines. It is effective in dispersing cold, generating fluid and astringing Yin. Chai Hu Gan Jiang Tang is mainly used in treating typhoid fever and shao yang (one of the six meridians of typhoid fever, which is between the surface and the inside of the body), cold and fever, cold and heat, fullness and slight knotting in the chest and ribs, dysuria, thirst without vomiting but sweating in the head, or cold but not hot. In modern times, it is often used in the treatment of chronic hepatitis, cholelithiasis, fever, dysmenorrhea, irregular menstruation, bandhas, chronic cholecystitis, pleurisy, chronic gastritis, malaria, and cystic hyperplasia of the mammary glands. In this formula, Gan Jiang and Gui Zhi warm and dissipate the cold in the interior, Chai Hu, Scutellaria Baicalensis and Shaoyang (treating exogenous fever with evil between the half-expression and half-river), Oyster resolves phlegm and disperses knots, Gua Piper Root generates fluids and quenches thirst (promoting the production of fluids to alleviate thirst), and Glycyrrhiza glabra harmonizes the various medicines (modulating the properties of different Chinese medicines). The adverse effects, contraindications and precautions of this drug are not known. It is recommended to use the drug under the guidance of a Chinese medicine practitioner for unauthorized use of the drug may result in adverse consequences.