Here is to introduce the efficacy and function of gypsum in traditional Chinese medicine. Gypsum is a kind of ore, which belongs to monoclinic system. The crystals are often plate-shaped, and the aggregate is often dense, granular, fibrous or leaf-shaped. The color is usually white, and the crystal is colorless and transparent. When the composition is impure, it can appear gray, flesh red, honey yellow or black. Nature and taste of gypsum: sweet and cold. The efficacy of gypsum: relieving muscle and clearing away heat, removing annoyance and quenching thirst, clearing away heat and detoxifying. Gypsum is often used to clear away heat and cool blood, and it is also added when tofu is made by the traditional method. It is good to eat tofu with gypsum for toothache, but now it is almost impossible to find the function of gypsum: gypsum is mainly used to relieve muscle heat, relieve annoyance and quench thirst. Treat fever with persistent fever, vexation, delirium, thirst, dry throat, acute lung heat, heatstroke, spontaneous sweating, stomach fire, headache, toothache, intense heat toxicity, spots and rashes, and sores on the tongue. Burn and apply raw muscles to heal sores. External treatment of carbuncle, ulcer, ulcer, scald caused by soup and fire. ① Ben Jing: it is mainly used for treating apoplexy with cold and heat, adverse qi in the heart, asthma, dry mouth and burning tongue, abdominal pain, lactation and golden sore. ② "Bielu": In addition to seasonal gas, headache, body heat, triple energizer fever, skin heat, diaphragm heat in the stomach, muscle sweating, thirst quenching, abdominal distension, flatulence, wheezing and pharynx heat. It can also be used as bath soup. ③ Theory of Medicinal Properties: Treating typhoid fever with headache like splitting, intense heat, skin like fire dryness, polydipsia, muscle relaxation, toxic sweating, regulating stomach stagnation, boredom, anxiety and irritability, and treating dry mouth and scorching lips. Decoct tea with scallion to relieve headache. 4 "Rihuazi Materia Medica": cure the fever in the sky, lower the breast, the head wind whirls, the heart is agitated, and the teeth are beneficial. ⑤ Pearl Capsule: Stop Yangming's headache, quench thirst, heatstroke and hot flashes. ⑥ "Medication of Mind": medicine for treating stomach meridian cold, moistening lung to remove heat, dispersing yin evil, slowing spleen and benefiting qi. ⑦ Supplement to Materia Medica: The research is the end, and the vinegar research pill is as big as mung bean to purge stomach fire, phlegm fire and food accumulation. ⑧ Yang Shiying: It is the best way to heal sores and dizziness without rotting muscles. Pet-name ruby "materia medica": epigastric pain is very severe, swallow it. ⑩ Changsha Medicinal Solution: clear the heart and lungs, treat dysphoria, relieve stagnation of heat, stop dryness and thirst, treat fever mania, cough due to fire, stop sweating due to heat, eliminate phlegm due to heat, stop epistaxis, regulate aphtha, manage sore throat, promote lactation, smooth breast carbuncle, relieve fire burning, and treat golden sore. Attending "Materia Medica Rejuvenation": Treat headache, fever, dim eyes, toothache, kill insects and facilitate urination. The use of gypsum is taboo: people with spleen and stomach deficiency and cold, blood deficiency and fever due to yin deficiency should not take it. "The Origin of Medicine": "The secret of attending" says that it can cold the stomach and make people not eat, and it should not be used lightly unless the abdomen is extremely hot.