Herbs that Clear Heat and Dry Dampness

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Which of the following herbs clears Lung heat; for fever, thirst, and cough with thick, yellow sputum?
Of the three Huangs, Huang Qin is best for clearing heat from the upper-jiao. It can be used for cough due to phlegm heat, as in Qing Qi Hua Tan Tang.

Source: Chen, J. and Chen, T. (2004). Chinese Medical Herbology and Pharmacology. Art of Medicine Press. pp. 138 [Q389]