White-flowered Snake Tongue Herb is a traditional Chinese medicine, there is no authoritative basis to clarify the harm of White-flowered Snake Tongue Herb to the liver, but yin gangrene (is a kind of slow condition of yin sores and ulcers disease of the general term) and the spleen and stomach cold (spleen and stomach weakness and cold) people should be contraindicated. White Flower Snake Tongue Herb is slightly bitter, sweet and cold in nature, it has the efficacy of clearing away heat and detoxification (removing heat and toxicity in the body), dispersing knots and eliminating swellings, inducing dampness and clearing away drenching, it has good efficacy in carbuncle, swelling and sores, venomous snake bites, heat drenching (burning and stinging pain during urination, accompanied by urinary urgency, discomfort in the small abdominal area) astringent pain and damp-heat jaundice and other diseases. The adverse effects of this product are not clear, yin gangrene and spleen and stomach cold people should not use, there is no authoritative basis for pointing out that this product is harmful to the liver. The use of white flower snake tongue grass should follow the principle of evidence-based medication, under the guidance of a doctor to identify the use of Chinese herbs, do not blindly use their own.