What is the effect and function of the yellow powder?

Xiehuang Powder is used to clear spleen and stomach heat and relieve latent fire in spleen and stomach. Xiehuang Powder, also known as Xiepi Powder, comes from "Children's Medicine Syndrome Direct Formula" and specifically consists of Huoxiang, Gardenia, Gypsum Fibrosum, Radix Glycyrrhizae, Radix Saposhnikoviae, etc. Among them, Gardenia and Gypsum clear accumulated heat in spleen and stomach, Huoxiang fragrance awakens spleen, Radix Glycyrrhizae clears away latent fire in spleen meridian, and Radix Glycyrrhizae clears heat and mediates. The whole has the effect of purging latent fire in spleen and stomach. It can be used to treat bad breath, dry mouth, sore mouth, dry lips, easy hunger, children's tongue, sweet mouth, bad appetite, diarrhea and other manifestations caused by spleen and stomach fire.