To achieve the effect of clearing the lungs and resolving phlegm (clearing heat from the lungs and resolving phlegm), commonly used Chinese medicines include Sichuan Beimu, Gua Lou, Zhu Ru, Platycodonopsis, Fatty Sai Hai, Luo Han Guo and so on, and the flower type of Chinese medicines rarely have the effect of clearing the lungs and resolving phlegm, so there is no way for flower tea to achieve this effect. Moreover, the active ingredients in the water are limited, and generally do not achieve the therapeutic effect. Clearing the lungs and resolving phlegm means clearing lung heat and resolving hot phlegm, which corresponds to phlegm-heat cough, usually with coughing and phlegm, yellow phlegm and sticky sputum, and red tongue with yellow fur and other symptoms. Representative medicines include Chuan Beimu, Gua Dao, Zhu Ru, Platycodonopsis, Fat Hai Hai, Luo Han Guo, etc. It is generally necessary to choose the appropriate Chinese medicine for treatment according to the symptoms. The adverse reactions of the above mentioned Chinese medicines are not yet clear. As most of them are cold in nature, they are not suitable for cold phlegm and cold symptoms, and the phlegm will increase after taking them. It is recommended to choose the suitable Chinese medicine under the guidance of a Chinese medicine practitioner before making the tea.