The best winter juice is Ping 'an Caicai rock sugar soup to treat cough. At the same time, this dish also has the effects of nourishing the stomach, promoting digestion, relieving discomfort and broadening the chest.

There is a custom in old Nanjing, that is, on the day of "Winter Solstice and New Year's Eve", every family has the same dish on the table, that is, green vegetables and tofu, which we call "safe dishes" first. Old people often say that green vegetables and tofu are safe, meaning: auspicious and safe. The method is simple and is one of the necessities of home cooking. Although Chinese cabbage is an ordinary vegetable, it is the most trusted vegetable of the people, and it is also a "safe dish" in people's eyes.

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Compendium of Materia Medica, 52 volumes. Li Shizhen (Dongbi) in Ming Dynasty was written in the 31st year of Jiajing (1552) to the 6th year of Wanli (1578), and it was revised three times. Invented the theory of traditional Chinese medicine, the book emphasizes the dialectical application of traditional Chinese medicine, such as Veratrum said, "People spit different drugs, Changshan spits malaria phlegm, diced melon spits hot phlegm, Five Blessingg decocts wet phlegm, Raphanus sativus spits air phlegm, Veratrum spits wind phlegm".

There are also famous sayings and incisive theories that have not been discussed by predecessors, such as "the brain is the home of Yuan God" in Xinyi's article, and "the spleen is the mother of vitality and the lung is the breath-absorbing device" under the orange pimp. In the book, two drugs are mistaken for something in the past herbal books, such as cockroaches and female impotence; Mistake one thing for two drugs, such as Rhizoma Arisaematis and Tiger Claw; The varieties are confused, such as lily and Lilium lancifolium.

Distortion of medicinal parts, such as gallnut mistaken for fruit; Improper drug classification, such as classifying Dioscorea as grass, will be clarified and corrected. The book criticizes the phenomenon of trying to live forever and taking Stan, and refutes the theory that Rhizoma Coptidis and Rhizoma Alismatis can become immortals and grass seeds can become fish.