The external characteristics of natural pearls have been used medicinally in China for more than 2,000 years. The medical books of the Three Kingdoms period, "Famous Doctors", Pearls"Ben Cao Jing Ji" of the Liang Dynasty, "Sea Herbal Materia Medica" of the Tang Dynasty, "Kaibao Materia Medica" of the Song Dynasty,Pearls "Compendium of Materia Medica" of the Ming Dynasty, "Lei Gong Medicine Fu" of the Qing Dynasty 》19 ancient medicine books, etc.Pearlsall have clear records on the efficacy of pearls.
Liang Hongtao said in the "Compendium of Materia Medica" that pearls "have the effect of treating eyes and skin,Pearls stopping diarrhea" and so on. The Tang Dynasty's "Hai Yao Materia Medica" believes that pearls can improve eyesight,Pearls eliminate halo and stop diarrhea. In the Yuan Dynasty, merchants often drank honey and pearl powder in water to drink,Pearls thinking that it could both nourish and prevent heatstroke. Yuan Haowen recorded in "Xu Yi Jian Zhi": "Tao Shui formed small ice in winter...... It is as clean as a pearl... It is mixed with honey water in the summer and added with pearl powder."
In the Ming Dynasty,Pearls Li Shizhen paid more attention to the pharmacological effects of pearls, and believed that the medicinal effect of pearls was good for the skin. Therefore,Pearls he wrote in the "Compendium of Materia Medica": "Pearl flavor is salty, sweet and cold, non-toxic, calming and eye-catching;Pearls pearl coating is moisturizing. Good color. Apply hands and feet, remove skin to reverse spleen; fall sputum, remove facial spots, stop diarrhea; remove pediatric shock,Pearls soothe the soul; stop spermatorrhea, turbidity, relieve acne and cure poison....... make the gloss white. At the same time,Pearls it also records a variety of methods for medicinal use of pearls.
In the Ming Dynasty,Pearls Chen Jiru quoted "Duo Zhi Zhi" as saying that when Tang Wuzong Li Yan was in power, the prime minister Li Deyu used jewelry powder,Pearls realgar, and cinnabar frying sauce as soup,Pearls and each meal cost about 30,000 yuan. At that time, alchemy was popular, and people believed that pearl powder, realgar, etc.Pearls after refining, can be immortal and elated.

