Yinchaihu is sweet in nature, slightly cold, enters the liver and stomach meridians, and has the functions of relieving deficiency heat and clearing liver heat. Clinically, it is often used for symptoms such as fever due to yin deficiency, hot flashes, bone steaming, night sweats, etc. It is often used with Artemisia annua, Carapax Trionycis and Cortex Lycii. Yinchaihu can also be used for infantile malnutrition, such as persistent low fever, thirst, irritability and emaciation. It is often used with Gardenia, Picrorhiza Rhizoma, Atractylodis Rhizoma and Endothelium Corneum Gigeriae Galli to clear heat and relieve exterior syndrome. Yinchaihu can treat chronic malaria with yin deficiency. Yinchaihu also has the function of clearing away heat and cooling blood, and can treat the late stage of pulmonary tuberculosis and bone steaming hot flashes.