Clearing fire in Chinese medicine theory is divided into clearing real fire and clearing imaginary fire, for different situations need to take different drugs under the guidance of a physician, not a generalization. Real fire refers to solid heat caused by the blazing of evil heat, with stomach and intestines, liver and gallbladder solid fire being the most common, which is characterized by high fever, headache, red eyes, bitter and dry mouth, thirst for cold drinks, irritability, abdominal pain and refusal to be pressed, dystocia, constipation, and other symptoms. Medicines for clearing solid fire include Scutellaria baicalensis, Coptis chinensis, Cyperus rotundus, Rhubarb, Forsythia, Mucuna pruriens, Gardenia jasminoides, Xia Ku Cao, etc., which have the effect of clearing heat and removing fire for the real fire of different internal organs, such as Heart Fire, Liver Fire, Stomach Fire, Lung Fire, Small Intestine Fire, etc. Deficiency fire refers to the fever caused by true yin deficiency, there will be two cheek flushes, low fever, five heart heat heart insomnia, night sweating and other symptoms, clearing the deficiency fire medicines such as artemisia, turtle shells, etc., can be cleared through the deficiency heat, for the yin deficiency caused by the deficiency of the deficiency fire has a better therapeutic effect. The preparation and use of Chinese medicines for clearing fire is recommended to be carried out under the guidance of a professional physician, and should not be used on one’s own to prevent the medicines from being incorrectly prescribed and having adverse consequences.