Cool Acrid Herbs that Release the Exterior

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Which herb has the following actions: releases the muscle layer, generates body fluids to alleviate thirst, and raises Spleen yang to stop diarrhea?
Ge Gen enters the SP/ST channels, and all of these functions are related to that: the muscles are goverened by the Speen, thirst and body fluids are related to ST yin, and diarrhea involves the Spleen.

Source: Bensky, D. (2004). Chinese Herbal Medicine: Materia Medica. Seattle, WA: Eastland Press. p. 70 [Q353]