In the Eastern Han Dynasty, Zhang Zhongjing used to be the prefect of Changsha, visiting patients to apply medicine and practicing medicine in the lobby. Later, he resolutely resigned and returned to his hometown to treat his neighbors. When he returned home, it was winter. He saw that the villagers on both sides of the Baihe River were sallow and emaciated, hungry and cold, and many people's ears were frozen. He asked his disciples to set up a medical shed and a cauldron in Dongguan, Nanyang, and give up "Quhan Jiaoer Decoction" to cure chilblain on the day of the winter solstice.
He boiled mutton and some herbs for dispelling cold in a pot, then fished out the mutton and medicines and chopped them, made them into ear-like "Jiao Er" with bread. After cooking, he distributed two "Jiao Er" and a big bowl of broth to everyone who came to ask for medicine.
People ate "Jiao Er" and drank "Quhan Tang", and they were warm all over, with fever in both ears and frostbitten ears cured. Later generations learned the look of "Jiao Er" and packaged it into food, also called "jiaozi" or "flat food".
character introduction
Zhang Zhongjing (about A.D.150 ~154—about A.D. 215 ~ 219) was born in Nieyang County, Nanyang (now Zhangzhai Village, Gedong Town, dengzhou city City, Henan Province). A famous physician at the end of the Eastern Han Dynasty, he was honored as a "medical sage" by later generations. Zhang Zhongjing extensively collected medical prescriptions and wrote the masterpiece Treatise on Febrile Diseases handed down from ancient times. The principle of "syndrome differentiation and treatment" established by it is the basic principle of TCM clinic and the soul of TCM.