Gypsum has the effect of removing vexation and thirst, clearing heat and fire (removing heat and fire from the body), clinically used in the treatment of gastric fire, high fever, vexation and thirst, exogenous fever, lung fever, coughing and asthma and other diseases. Calcined gypsum has the effect of collecting dampness, producing muscle, astringing sores and stopping bleeding. Gypsum is sweet, pungent, cold, and can enter the lung and stomach meridians, with the medicinal effect of removing vexation, quenching thirst, clearing heat and diarrhea, clinically it can be used for the treatment of gastric hyperthermia, hyperthermia, external fever, toothache, headache, lung fever, cough and asthma. It is suitable for use in raw form to quench thirst and clear heat and fire, and in calcined form to stop bleeding and collect dampness. Raw gypsum is usually taken as a decoction, which needs to be decocted first, and calcined gypsum is usually used externally as a powder. The adverse reaction of gypsum is not clear, and it is not recommended for those who are not suffering from solid heat or those who are weak and cold in spleen and stomach (spleen and stomach are weak and cold). The above medicines should be used under the guidance of Chinese medicine practitioners, and should not be taken blindly by oneself to avoid damage. In case of discomfort, please consult a doctor promptly.