Gypsum refers to the traditional Chinese medicine gypsum, which has the effect of clearing heat and fire (removing heat and fire from the body), removing vexation and quenching thirst, and can be used for external fever, high fever and thirst, lung heat and wheezing and coughing, hyperactive stomach fire, headache, toothache, etc. It is sweet and pungent in flavor, cold in nature, and belongs to the lung and stomach meridians. Gypsum is sweet and pungent in taste, cold in nature, belonging to lung and stomach meridian, it has strong power to clear heat and fire, remove annoyance and relieve cough, the pungent and cold can dissolve the muscle (remove the evil on the surface of the skin) and penetrate the heat, and the sweet and cold can clear the heat of the stomach and remove annoyance and thirst, it is the key medicine for clearing and diarrheal the real heat of the lung and stomach qi points, it can be used for the external cold and heat disease, high fever and annoyance and thirst. It can be used to clear solid heat in the lung meridian, and is used for coughing and wheezing due to lung heat. Gypsum can also clear stomach fire, can be used for stomach fire hyper attack caused by swollen gums, stomach fire headache. It should be noted that gypsum is generally used in decoctions to be decocted first, and should be used with caution in cases of Yang deficiency and cold, weakness of the spleen and stomach, and blood and yin deficiency and fever. The adverse reactions and contraindications of this product are not clear. The use of medication should be under the guidance of a doctor to identify the evidence, self-medication is not recommended.