There is no Wannianqing in the Pharmacopoeia. Clinical herbs that have the effect of clearing stomach fire include gypsum and other herbs. Gypsum has the effects of clearing heat and fire (removing heat and fire from the body), removing vexation and quenching thirst, astringing sores and regenerating muscles (helping sores to heal faster and promoting the growth of new flesh), collecting dampness, and stopping bleeding. Gypsum is a sulfate gypsum mineral gypsum, mainly containing hydrated calcium sulfate, its taste sweet, pungent, sex cold, with clearing heat and diarrhea, to remove annoyance and quench thirst, astringent sores and muscle growth, collect dampness, stop bleeding effect. It is mainly used in the treatment of warm-heat disease, lung-heat asthma and cough, stomach fire toothache, headache, real heat thirst, ulcers do not converge, eczema, itching, scalded by water and fire, traumatic bleeding. The adverse reactions of this product are not clear at present. Note that this product is prohibited for those who are allergic to this product, allergic persons should be cautious, Yang deficiency and cold evidence, spleen and stomach weakness and blood deficiency, Yin deficiency and fever should be cautious. If you need to use this product, it should be under the guidance of a physician, do not use the drug without authorization, so as not to cause adverse reactions.