It can be taken with boiling water or decoction, but the effect of boiling water is not as effective as decoction, it is recommended to use under the guidance of a doctor. It has the effect of clearing away heat and moistening the lungs, inducing the pharynx and opening the voice, and moistening the intestines and laxatives. It is sweet in flavor and cold in nature, and is used for lung fever, mute voice, dry cough without phlegm, dry and sore throat, hot constipation, headache and red eyes and other illnesses. It can be used to treat hoarseness caused by lung heat, sore throat and cough under doctor’s supervision with Platycodon grandiflorum and licorice. It can also be used to treat headache, red eyes and constipation caused by heat, and if the symptoms are severe, it can be combined with aloe vera and Rhizoma Coptidis under the guidance of a doctor to enhance the efficacy of the medicines to clear heat. It should be noted that the cold nature of fat sea, spleen and stomach cold stools, should be used with caution.