The dangers of half-summer diarrhea heart soup are not yet clear. However, half-summer is poisonous and should not be used more often or taken for a longer period of time. Half-summer diarrhea heart soup is from the “Treatise on Typhoid Fever”, the effect is to eliminate lumps and dissipate knots, cold and heat, clinically can be used for the treatment of lumps of cold and heat mixed (the same patient at the same time appearing in the cold and heat), can be seen in the heart of the lumps under the heart (mainly refers to the stomach distension uncomfortable), but fullness does not hurt, or vomiting, intestinal tinnitus and discharging, and so on. In this formula, 半夏 functions to lower the rebelliousness and stop vomiting (stopping the upward flow of stomach qi, stopping vomiting), eliminating lumps and dispersing knots; dry ginger warms the middle and disperses evils; Huang Huanglian and Scutellaria baicalensis are bitter and cold in nature, diarrhea-heat eliminating the lumps; jujube and ginseng are sweet and warm and beneficial to qi (using sweet and warm medicines to replenish the qi), and at the same time replenish the spleen qi; and licorice harmonizes the various medicines (harmonizing the properties of different traditional Chinese medicines). The adverse reactions and contraindications of this formula are not known. When discomfort occurs, one should seek medical advice and select medication under the guidance of physician’s diagnosis, rather than self-medication, in order to avoid delaying the condition.