What do you mean by residue?

1. Residue after decoction of traditional Chinese medicine.

2. Insoluble residue left after extracting substances (such as drugs) with solvents.

Trample residue, Han folk beliefs and customs. Popular in Jiangsu, Zhejiang, Shanghai and other places. The patient ate Chinese medicine, dumped the dregs on the road and let thousands of people step on it.

The origin of the word "love rat" that is often used on the Internet is that one day, when the emperor saw his concubines with sad faces and bad skin color, he called the doctor urgently. The doctor prescribed: eight strong men. A few days later, the emperor went out to visit the palace. I was overjoyed to see the princess radiant. Suddenly, I saw eight thin people filed out in front of the temple and asked in surprise: Who? The doctor replied: scum!

"Drug man" now generally refers to a selfish, easy-to-get, irresponsible man who plays with others' feelings.

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There are two kinds of folklore about trampling on dregs: one is that it can drive away diseases and eliminate disasters, and it is believed that after patients take medicine, the root of the disease will move to dregs, and once the dregs are trampled by others, the root of the disease will be taken away and the disaster will move to others.

You can tell the authenticity of herbs. Legend has it that when Li Shizhen was looking for herbs in Jiangnan, a sick woman groaned. After feeling his pulse, he took out herbal soup from his bag and gave it to the patient. As a result, the medicine was cured. The sick woman was deeply moved and complained that the herbs given by the quack didn't work after eating. Hearing this, Li Shizhen immediately asked her to take out the dregs. When she looked at them carefully, they were all fake medicines.

After the masses knew it, they took out the herbs matched by the quack doctors and poured them on the ground, so that Li Shizhen could check them one by one and eliminate the fake medicines. Afterwards, everyone dumped the dregs on the road, hoping that Li Shizhen would pass by for inspection, which became a custom over time.

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