Guati San is mainly used to treat phlegm, saliva and food, congestion in the chest and epigastric region. Chinese medicine emphasizes on evidence-based treatment, and there is no such thing as “Gua Ti San cures difficult and complicated diseases” in clinical practice. Gua Ti San is composed of Gua Ti, red beans, with the efficacy of gushing and vomiting phlegm and saliva, mainly used for the treatment of phlegm and saliva, congestion in the chest and epigastric cavity, symptoms of chest plagued with hardness, chagrin and restlessness, wanting to spit out, the gas rushed up to the throat and can not be sucked and other manifestations. It should be noted that, due to the bitter cold and poisonous melon seeds in the formula, it is easy to injure qi and destroy the stomach, so melon seeds are not suitable for patients with deficiency of yin and fluids, physical weakness and blood loss. Before using Gua Ti San, it is recommended to go to a regular hospital for consultation and treatment under the guidance of a professional physician.