White-flowered Snake Tongue Herb can be drunk in water alone, but the active ingredients of the water are limited to be analyzed and cannot achieve the efficacy of the drug. White flower snake tongue grass is a kind of traditional Chinese medicine, taste slightly bitter, slightly sweet, sex slightly cold, into the heart, liver, spleen meridian. It is capable of clearing away heat and detoxification, eliminating carbuncles and dispersing knots, and inducing diuresis and swelling. It can be used to treat lung-heat asthma and cough, sore throat, dysentery, urinary tract infection, etc. It can also treat damp-heat jaundice, carbuncle and furuncle, and venomous snake bite. The adverse effects of the white flower snake tongue grass is not clear, yin gangrene (is a class of slow condition of the general term of the negative sores and ulcers) and the spleen and stomach cold people should not be used, pregnant women should be used with caution. If there is a need for medication, need to be used under the guidance of a doctor to identify the evidence, not blindly use their own medication, so as not to cause adverse consequences.