【Nature and flavor】Sweet, light, neutral.
 [return through meridians] returns the liver and stomach meridians.
 【Functions and indications】Dehumidification, detoxification, and joint unblocking. Used for damp-heat stranguria, leucorrhea, carbuncle, scrofula, scabies, syphilis, and limb cramps and pain in tendons and bones caused by mercury poisoning.
 【Usage and Dosage】15～60g.
 【Medical records】
 "Compendium of Materia Medica": "Apply to sores and poisons."
 "Compendium of Materia Medica in Southern Yunnan": "It can treat stranguria and leukorrhea, and can also treat waxberry sore and erysipelas."
 "Compendium of Materia Medica": "It strengthens the spleen and stomach, strengthens the tendons and bones, removes rheumatism, benefits the joints, and stops diarrhea. It can treat cramps and bone pain; malignant sores and carbuncles. It can also detoxify mercury powder and silver vermilion."
 "Essentials of Herbal Medicine" states: "To disinfect sores and boils, apply the roasted juice or boil it with wine."
 "New Materia Medica": "It removes dampness and heat, and benefits the tendons and bones."
 "Compendium of Materia Medica" says: "The root of the grass is like a bunch of cups, half of which is above the soil. The skin is like Poria cocos, the flesh is red and tastes astringent. People take it as grain and will not feel hungry...it can regulate the middle and stop diarrhea."
 "Compendium of Materia Medica": "It strengthens the spleen and stomach, strengthens the tendons and bones, removes rheumatism, benefits the joints, and stops diarrhea. It treats cramps and bone pain, malignant sores and carbuncles. It also removes the poison of mercury powder and silver vermilion."
 【Predecessors release medicine】
 "Compendium of Materia Medica" says: "If you have a sore caused by waxberry, you can use talcum powder. It will heal but recur. After a long time, your limbs will become cramped and turn into carbuncle and fistula. It will last for years and eventually lead to disability. You can only use 3 liang of ground radix ophiopogonis, or add 1 qian of saponin and morning glory, 6 bowls of water, boil 3 bowls, and take it in 3 doses. It will heal in a few doses. This disease is caused by poisonous gas drying up in Yangming. The talcum powder is dry and strong. After a long time, the water will be weakened, and the liver will take the fire to overwhelm the spleen and earth. The earth belongs to Dampness governs the muscles. Damp heat accumulates in the skin and muscles, so it causes carbuncle and swelling, and even cramps. This is what the Neijing says about dampness harming the skin, flesh, tendons and bones. Tupigenia is sweet, mild and mild, and can remove dampness from the spleen. When dampness is removed, the Ying and Wei are smooth, the tendons and veins become soft, the muscles become firm, and cramps, carbuncle and fistula are cured. If it does not work at the beginning of the disease, it is because the fire is strong and the dampness is not yet accumulated. This medicine is good at removing dampness, but not heat. If the disease lasts for a long time, the heat will decline and the qi will be exhausted, and the dampness will be accumulated. "
 "Compendium of Materia Medica": "There are two kinds of wild yam, red and white. The white one is better for medicine. According to the "Zhongshan Jing", there is a grass called Rongcao on the mountain of Gudeng. Its leaves are like willows and its roots are like chicken eggs. Eating it can cure wind. I am afraid this is it... Wild yam can strengthen the spleen and stomach and remove rheumatism. If the spleen and stomach are healthy, the Ying and Wei will be in good condition. If rheumatism is removed, the tendons and bones will be healthy."
 "Compendium of Materia Medica" states: "Smilax glabra can remove dampness and heat, and can enter the meridians to search for and remove the toxicity of dampness and heat. It can remove the toxicity of mercury and light powder. The former can lift the toxicity upward, while this one can penetrate and guide downward. Therefore, it is specially used to treat waxberry poison sores, which penetrate into the meridians, cause joint pain, and even rot. It can also treat the upward movement of toxic fire, sore throat, and all other serious diseases."