Xu Dachun (1693 ~ 177 1), formerly known as Daye, was named Lingtai, and later named Huixi Old Man. A native of Songling Town, Wujiang, Jiangsu. Grandfather Xu Hong, in the eighteenth year of Kangxi (1679), was a branch of Hanlin in Hongci, served as a proofreader and edited Ming History. Father Xu, a scholar of fine water conservancy, once hired Wuzhong Water Conservancy Records. Da Chun studied Confucianism since he was a child. He is very clever. Nearly thirty years old, he devoted himself to medicine and studied the books of famous doctors in past dynasties because of his family's illness, which was rapid and profound. Hanging pot helps the world and understands the medicinal properties. Although it is a serious disease, it can be cured every time. Here is another person with the same name in detail.