Gypsum is divided into raw plaster and calcined plaster
Raw plaster
Raw gypsum is a sulfate mineral ante gypsum group gypsum, the main containing aqueous calcium sulfate (CaSO4·2H2O).
Raw gypsum taste sweet, spicy, cold, return to the lungs, stomach meridians.
It has the effect of clearing heat and diarrhea, eliminating annoyance and quenching thirst.
Clinically, it is mostly used for the treatment of external fever, high fever and thirst, lung heat, wheezing and cough, hypergesthea, headache, and toothache.
It is often used for the purpose of knowing the mother, such as white tiger soup. Cure warm fever qi is divided into real heat, symptoms see strong heat, thirst, sweating, pulse flood.
If paired with Xuan Ginseng, such as spotted soup. It can cure both warm diseases, qi and blood, and see those who are dazed and have spots.
Matched with ginseng, mai dong, etc., such as bamboo leaf plaster soup. It can be used to cure the beginning of summer fever, injury and gas consumption or heat in the later stage, the residual heat is not exhausted, the qi is lost, and the symptoms are seen in the body heat, upset, and thirst.
Served with ephedra and almonds, such as apricot stone sweet soup. It can treat pulmonary fever, wheezing, cough, fever and thirst.
Compatible with huanglian, cohosh and other drugs, such as gastric dispersion. Cure stomach fire attack gum swelling and pain.
Paired with Sichuan root, such as gypsum Sichuan root soup. If the stomach fire headache is cured,
Matching with Wu Zhimu, raw ground yellow, Mai Dong, etc., such as Jade Girl Fried. It can be used to quench thirst for stomach heat steaming and consuming jin liquid.
Calcined plaster
Also known as wrought plaster
After calcination at high temperatures, its crystalline water has dispersed and becomes white, which is easily crushed into white fine powder. Its astringent nature is often more in external use, such as using it to collect sores. Gypsum can astringent muscles and stop bleeding when calcined, so it can be used for traumatic bleeding, water and fire burns and so on. The "General Micro Theory of Pediatric Health" treats the wounds of the golden blades, and the blood does not stop: one or two each of plaster, betel nut, huanglian (to remove the whiskers), and half a yellow cedar. On the fine powder, with how much to mix on the sore, the blood is fixed, and it may as well be put into the water. "Behind the Elbow" cures "the soup is burned and wounded, and the plaster is pounded to apply it". Zhang Xichun, a physician at the end of the Qing Dynasty, further clarified that the treatment of golden sores by gypsum is to take its hemostatic effect, he said: "The "Benjing" says that gypsum cures golden sores, which is used externally to stop their bleeding. Foolishly try to calcite the fine powder of plaster, and apply gold sores to bleed very effectively.