Qingying Decoction: a classic prescription that clears away heat, cools blood, and relieves heat and improves qi.

Qingying Decoction is one of the representative prescriptions of the febrile disease school of traditional Chinese medicine. It was created by Wu Jutong, a famous doctor in the Qing Dynasty, in "Tiao Bian of Febrile Diseases". It is mainly used to treat heat entering the camp syndrome. Its core functions areClear away heat, cool blood, penetrate heat and turn Qi, through a combination of rhinoceros horn (now often replaced by buffalo horn), raw rehmannia, scrophulariaceae and other medicinal combinations, it can remove heat and toxins while nourishing yin and promoting fluid production. This article will be divided into four parts: prescription composition, indications, modern application and precautions, focusing on analyzing its unique treatment method of "transmitting heat and turning Qi", and attaching data to compare its differences with similar prescriptions.

1. The composition principle of Qingying Decoction and the strategies of the emperor and his ministers

Qingying soupbuffalo hornIt is a royal medicine that clears away heat, cools blood and detoxifies;Radix Rehmanniae, ScrophulariaceaeAs a minister, nourish yin and reduce fire;Silver flower, forsythia, bamboo leavesAs an assistant, it penetrates the heat and reaches the outside;Coptis chinensis, Salvia miltiorrhizaTo purify the heart and activate blood circulation. The whole formula embodies the treatment principle of "entering the camp can still penetrate the heat and turn the qi", that is, by gently dispersing and dispersing the medicine, the heat evil hidden deep in the camp can be drawn out of the qi and resolved. Modern research shows that this prescription can regulate immunity and inhibit inflammatory factors (such as IL-6, TNF-α), and is suitable forHigh fever that lasts at night, faint rashes, and a crimson tongue without coatingand other typical symptoms.

2. Indications and contraindications: syndrome differentiation is the key

Qingying soup is suitable forSyndrome of mid-stage febrile disease with fever entering the camp, such as epidemic hemorrhagic fever, sepsis, etc., but strict syndrome differentiation is required. If the patient has symptoms of Qi and Yin deficiency such as profuse sweating and pulse deficiency, it should be avoided to avoid aggravating body fluid depletion. Compared with Xijiao Dihuang Decoction, Qingying Decoction focuses more on "transmitting heat", while the latter specializes in cooling blood and dispersing blood stasis. The following table compares the differences between the two:

3. Modern applications and typical cases

Modern clinical use of Qingying Decoction has been expanded toViral myocarditis, systemic lupus erythematosusand other immune diseases. For example, research from Beijing University of Chinese Medicine shows that the effectiveness of Jiajia Qingying Decoction in treating herpes zoster neuralgia can reach 82% (Chinese Journal of Experimental Prescriptions 2021). Please note when using:①Disabled for those without thermal imaging;②Pregnant women should be careful with buffalo horns;③Severe infections need to be treated with Western medical first aid measures.

4. Summary: Balance between inheritance and innovation

Qingying Decoction is a classic prescription for febrile diseases, and its idea of "transmitting heat and transforming qi" still guides clinical practice. However, it is necessary to make a clear diagnosis in conjunction with modern medicine to avoid misuse for non-pyretic diseases. Future research can further focus on its anti-inflammatory mechanism, such as analyzing multi-target effects through network pharmacology (data source: "Chinese Herbal Medicine" 2023). Wu Jutong emphasized in "Tiao Bian of Febrile Diseases" that "treating Jiao Ru Yu must be done lightly", suggesting that the characteristics of this prescription are light and flexible, which is worthy of reference by future generations.

Quote sources:1. "Differentiation of Febrile Diseases"·Wu Jutong (Qing Dynasty) 2. "Chinese Journal of Experimental Prescriptions" Issue 12, 2021 3. "Chinese Herbal Medicine" 2023 Network Pharmacology Research Topic