The title “Washang Grass” should refer to the Chinese herbal medicine “Wacao”, which has the effects of clearing heat, resolving phlegm, relieving pain and diuretic, and is mainly used to treat rheumatism and bone pain, lung-heat cough, gonorrhea and other diseases. Wacao belongs to the heat-clearing and detoxifying (removing heat and toxicity from the body) medicines, also known as Dianbaiqian, Qingbiao vine, its flavor is bitter, pungent and cool. It is bitter, pungent and cool in nature. It is effective in clearing heat, resolving phlegm, relieving pain and diuretic. It can be used internally to treat rheumatism and bone pain, lung-heat cough, abdominal pain, gonorrhea and other diseases, and can be used externally to treat traumatic bleeding. It is not suitable for patients who have allergic history to the herb. If necessary, please use under the guidance of a professional Chinese medicine practitioner, not self-medication, so as not to cause adverse consequences.