It can be used externally to treat poisonous snake bites and other symptoms. Although they are both known as white appendages, their sources and effects are different and should be distinguished when they are used. The white herb and the herb should also be clearly distinguished, the “Compendium of Materia Medica” recorded: “White herb is Yangming medicine, because of the similarity with the herb, so it got its name, is not the herb class.” So, what are the similarities and differences between Yubai and Guanbai? The legendary story of white herbs Legend has it that the Empress Dowager Cixi of the Qing Dynasty had facial wind for many years, and the left side of her face was throbbing from the eyes down to the cheekbones, which is the left side of the facial nerve spasm. In the 14th year of Guangxu, Empress Dowager Cixi was 53 years old and had not been cured for more than 10 years. In the twenty-eighth year of Guangxu, in addition to the throbbing, the mouth was crooked and the eyes were slanted, but it was still a facial nerve spasm. By this time, Cixi was 67 years old. Multiple treatment to the second half of Guangxu 32 years of improvement, various prescriptions of white herb is still the main medicine. And the white herb topical treatment of skin diseases is an ancient book: “Compendium of Materia Medica”: “Chu sage biography: Kong Hugh wounded cheek scar, Wang Mang gave jade shavings white herb incense with the scar.” Tang dynasty Li Xun “sea medicine herbs”: “white saprophytic, head and face spots, into the face grease with.” Sources and effects of Yubai Pine Origin: the tuber of Dictyostelium, family Tennantaceae. Origin: Mainly produced in Henan, Shaanxi, Sichuan and Hubei. Gansu, Shanxi and other places also produced. The largest production in Henan, the quality is also good. Taste: Pungent, sweet, warm, toxic; belongs to the liver and stomach meridian. Effects: Drying damp phlegm, dispelling wind phlegm, stopping spasm, relieving pain, detoxifying and dispersing knots. Usage and dosage 1. Decoction, 3-5g. 2. Powdered, 0.5-1g, should be used after concoction. 3.Appropriate amount for external use. Note 1: This product is pungent, warm and dry, and should not be used by people with Yin deficiency, blood deficiency, or heat and wind, or pregnant women. 2. The raw product is generally not taken internally. The product is good at dispelling phlegm and relieving spasm and pain, and is often used in combination with Scorpion and Silkworm. 2, phlegm headache, vertigo This product is especially good at treating head and facial diseases. 3, scrofula, phlegm nucleus, snake bite In addition, as mentioned earlier, the source of Yubai Shen is the tuber of Doklamia, a plant of the family Tennantaceae. The other Chinese medicine “Dokkakuren” uses the above part, without the tuber that is.