The standard of Tianzhu soup is to pound winter melon seeds and Tianzhu into powder, add rock sugar and boiled water to stew. According to the relevant public information, Tianzhu decoction has the effect of relieving cough and resolving phlegm. Tianzhu, alias Tianzhu, Bambusa australis, Bambusa fortunei and Bambusa fortunei, is the fruit of Bambusae australis, a dicotyledonous plant medicine, and belongs to antitussive medicine.