suggestion
According to legend, Su Dan, a native of Chenzhou, Hunan Province, is skilled in medical skills, helpful, free of charge and good at health preservation. People call him Su Xianweng. On one occasion, Sudan was on a business trip and it took three years to come back. Said to his mother: next year, there will be a great plague in the world, and the well water and dried tangerine peel in our yard will be cured. If the patient has aversion to cold and fever, and his chest and diaphragm are full, give him a liter of well water, an orange leaf and decoction, and he will be fine soon. Later, as Su Dan said, plagues spread all over the world, and people looking for orange leaves from well water were thousands of miles away; People who drink orange leaves from well water will also recover immediately. Since then, people have praised doctors' achievements in saving lives with the scent of oranges and Jing Quan, and doctors will write them on a plaque to show their ambition.
Extended data
Dong Feng, a famous doctor in Jiangxi during the Three Kingdoms period, never took money to see a doctor. He only stipulated that every time he was optimistic about a minor illness, the patient would plant an apricot tree for him. Take care of a serious illness and plant five apricot trees for him. A few years later, it grew into a apricot forest. When the apricot tree bears fruit, it helps the poor by exchanging fruit for food, so it is praised as a warm apricot tree in spring by later generations. For thousands of years, Jing Quan's orange fragrance and apricot blossoms in spring have become very famous allusions in the history of ancient medicine in China, and also a symbol of China medicine.