There is no such thing as “ten efficacy of Huanglian soaking water”, Huanglian soaking water may have the effect of clearing away heat, detoxification, etc., but soaking water may not be able to completely analyze the active ingredients of Huanglian, and the use of Huanglian as a single flavor of traditional Chinese medicine, the therapeutic effect is limited. Huanglian for buttercup plant Huanglian, triangular leaf Huanglian or Yunlian dry rhizome. It is bitter in flavor and cold in nature. Attributed to the heart, spleen, stomach, liver, gallbladder, large intestine meridian. It can clear heat and dry dampness (removing heat and drying dampness), diarrhea fire and detoxification (removing fire and toxicity in the body). Huanglian can be used in treating damp-heat plumpness (stomach distension and discomfort), vomiting and acid swallowing (swallowing acid from the stomach that rushes upward to the mouth and throat), diarrhea, jaundice, high fever and dizziness, heart fire, palpitations (rapid heartbeat, often accompanied by panic attacks), restlessness, epistaxis (vomiting of blood and bleeding from the nose due to blood-heat), redness in the eyes, thirst, carbuncles, boils and furuncles (mostly sores on the limbs and face, with small shapes and deep roots, hard as nails), and so on. Huanglian can be used externally to treat eczema, wet sores, and pus flowing from the ear canal. Patients are advised to take Chinese medicine under the guidance of a doctor to avoid delay.