The composition of Qingying Tang includes Rhizoma Rhinoceros, Bamboo Leaf Heart, Ophiopogon, Sheng Di Huang, etc. It has the function of clearing Ying and detoxifying, transmitting heat and nourishing Yin. Qingying Tang is a heat-clearing agent. The formula of this formula includes rhinoceros horn, which is now commonly used instead of buffalo horn, bamboo leaf heart, maitong, raw dihuang, yuan ginseng, danshen, yellow dock, silver flower, forsythia, and so on. Qingying Tang is used to treat the syndrome of heat entering the camp, with specific symptoms including disturbed spirit, little sleep, occasional delirium, body heat that is worse at night, thirst or lack of thirst, eyes that are often open or closed, blotchy rash (slight blotchy rash on the skin), fine pulse (pulse that becomes narrower, thinner, and faster), and a reddish tongue that is dry. There are no specific contraindications or adverse effects associated with Qingying Tang. The specific use of the drug should be under the guidance of a specialist, and should not be used without authorization.