The combination of Huang Lian, Scutellaria baicalensis, Radix et Rhizoma Shengdi and Radix et Rhizoma Ginseng can be seen in Clearing Plague and Defeating Toxin Drink, which is combined with other herbs to achieve the effects of clearing heat and diarrhea (clearing away heat and fire evils in the body), and cooling the Blood and removing toxins (referring to the treatment of Blood-heat and toxins in the Blood). Huang Lian has the efficacy of clearing heat and drying dampness (removing heat and drying dampness), diarrhea and detoxification (removing fire and toxins in the body), and is used in the treatment of irritability in heat illnesses, delirium, vomiting, diarrhea, and heartburn and insomnia. This product is contraindicated for those with deficiency and coldness of the spleen and stomach (spleen and stomach weak and cold), and is used with caution for those with deficiency of yin and injury of fluid. Scutellaria baicalensis has the efficacy of clearing heat and drying dampness, detoxifying fire, cooling the blood and tranquilizing the fetus. It is used in treating damp-heat diarrhea (diarrhea caused by feeling damp-heat evil), jaundice, vomiting blood, epistaxis, hemostasis, leakage (excessive menstrual flow or dripping), restlessness of the fetus, carbuncle sores and ulcers, etc. It is not recommended for those with deficiency of cold in the spleen and stomach. This product should not be used by people with deficiency and coldness in the spleen and stomach. Shengdi has the efficacy of clearing heat, cooling blood and generating body fluid. It is used in treating yin injury and thirst, dizziness, maculopapular rash, coughing blood, vomiting blood, blood in stool, bone vapor of deficiency labor, sore throat, thirst, and constipation. The adverse reactions and contraindications of this product are not clear. Xuan Shen has the efficacy of nourishing yin and lowering fire (nourishing yin essence and lowering fire), cooling the blood and detoxifying the toxin (referring to the treatment of blood-heat and toxin embodied in the blood), and can be used to treat maculopapular eruption, intestinal dryness and constipation, deficiency of yin and bone vaporization with labor-heat, sore throat, carbuncle, and scrofula (mainly referring to cervical lymph node nodule tuberculosis). This product is not suitable for people with cold spleen and stomach, with little food and loose stools; this product should not be used with veratrum. When discomfort occurs, it is necessary to consult a doctor in time, and choose medication under the guidance of physician’s diagnosis, so as to avoid delaying the condition.