Table 1.

The composition of the Zi Huang Huo Xiang San.

Items	Chinese names	Actions
Echinacea root	Zi Zhui Ju Gen	Strengthens immune system
Scutellaria	Huang Qin	Clearing heat, drying dampness, purging fire, and detoxification
Patchouli	Guang Huo Xiang	eliminating dampness with aromatics, stopping vomiting and relieving summer-heat
Elsholtzia	Xiang Ru	Diaphoresis, detumescence and removing dampness for regulating stomach
Gypsum	Shi Gao	clearing away heat and purging fire, except vexed, slake the thirst
Dried tangerine peel	Chen Pi	Regulating Qi and strengthening the spleen, drying dampness, and eliminating phlegm
White atractylodes rhizome	Bai Zhu	Strengthen the Spleen, dry up Dampness, tonify Qi, and prom
Licorice	Gan Cao	Strengthen the Spleen and tonify Qi, Harmonize the effects of other herbs