Herbs that Clear Heat and Dry Dampness

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Which of the following herbs is best for clearing heat from the Stomach and Heart?
Of the three Huangs, Huang Lian clears heat from the middle-jiao (nausea, acid reflux, diarrhea), but don't forget that it also clears Heart heat (insomnia, delirium).

Source: Bensky, D. (2004). Chinese Herbal Medicine: Materia Medica. Seattle, WA: Eastland Press. pp. 135 [Q391]