脾土喜燥恶湿，故取东壁太阳所照之土，引真火生发之气，补土而胜湿，则吐泻
自止。用以制药皆为脾胃之引导耳。昔人以东壁土调水，治小儿嗜食泥土之病，取土入虫口
而祛之下行也。道途中热土治夏月 死，取温以散热也。若沃以冷水，虚阳立铲，死不救
矣。白垩土苦温无毒，《本经》主女子寒热症瘕，月闭积聚，取土之间气，以祛妇人间厕之
积也。《千金》治妇人带下等疾者，以土能胜湿，而白则兼入气分也，惟邯郸者为胜。黄土
甘平无毒，乃中央正色，不占秽渍，故色不黑，治泄利冷热、赤白，腹内绞痛，下血，解诸
药毒、闭口椒毒、野蕈毒。蚯蚓泥治小儿阴囊热肿，取寒能解毒也。热病谵语狂乱无燥结可
攻者，蚯蚓泥凉水调服。蜣螂转丸土治反胃、吐利、霍乱，汤淋绞汁饮之。醋调涂项上瘿瘤
。土蜂窝上细土，主头风肿毒及蜂虿伤，醋和敷之。胡燕窝土，主风瘙瘾疹及恶刺疮、浸淫
疮，并水和敷之。《短剧》治湿疡疥疮，《外台》治蠼 尿疮，《千金》治瘭疽丹毒。鼠壤
土通肾气，解毒邪，取其搜风达窍也。蚁垤土下胞衣死胎，炒热拓心下自出。烧尸场上土
，
治好魇多梦，置枕中并涂关元及脐。螺蛳泥主反胃吐食，取螺蛳一斗水浸，取泥晒干，每服
一钱，火酒调服。犬屎泥治妊娠伤寒，涂腹保胎。井底泥治妊娠热病，涂胸脐丹田护子，并
治汤火烧疮。伏龙肝乃灶心赤土，《本经》云∶味辛微温，主妇人崩中吐血。《千金》名釜
月下土，言正对釜脐处也。然必日用炊饭者良，若煮羹者，味咸不堪入药。止咳逆吐血，消
痈肿毒瓦斯，盖以失血过多，中气必损，故取微温调和血脉也。消痈肿毒瓦斯者，辛散软坚也。
《日华子》主催生者，取温中而镇重下坠也。其胎漏不止，产后下利，并宜煮水澄清去滓，
代水煎药，取温土脏，和营血也。《千金方》治中风口噤，狂不识人，并用搅水澄服。又久
痢不止，横生逆产，胞衣不下，皆醋调涂脐腹效。小儿重舌和苦酒涂之。发背，酒调浓敷，
干即易，平乃止。杖疮肿痛，香油调涂。灸疮肿痛，煮水热淋，皆孙真人法也。《外台》治
一切痈肿，和蒜泥贴，干再易之；百草霜烧百草之煤也，止血散瘀，上下诸血悉主之。又阳
毒发斑，取温以解毒散火也。釜脐墨治阳毒发狂，黑奴丸中用之。《千金》治卒中，恶卒，
心痛，舌卒肿大等患。又下死胎方，用百草霜二钱、伏龙肝五钱为细末，酒调童便服二钱，
少顷再服三钱即下。梁上尘，一名乌龙尾，治妊娠胎动、横生逆产，及金疮鼻衄、疔肿恶疮
、小儿赤丹，取其轻浮，以散久积之气也。清烟墨灰止吐衄血逆上行，或生藕汁，或莱菔汁
，或鲜地黄自然汁，磨服即止。然须烧灰出火毒用之，但勿用干地黄和水捣磨。柏叶汁、甘
蕉汁，咸非所宜，往往止截后有瘀积之患。飞丝入目及一切尘物入目，磨浓墨点之自出，或
灯心蘸墨汁频卷之。砂锅取年久炊食者，研细水飞，治黄肿积块，酒服五钱，潞州者佳。孩
儿茶，一名乌爹泥，性涩收敛，止血收湿，为金疮止痛生肌之要药。白磁器研细水飞，敷痈
肿，可代针砭。又点目去翳。粪坑底泥治背疮疔肿痈毒，阴干为末，新水调敷，其痛立止。
坑同蝉蜕、全蝎末作饼，香油煎滚，温服，以滓敷疔四围，其疔自出。
脾脏属土，喜好干燥而厌恶潮湿，因此选取东面墙壁被太阳照射过的泥土，以引导真火生发之气，通过补益脾土来战胜湿气，这样呕吐和腹泻自然就会停止。这种土用来制药，都是作为脾胃的引经药罢了。过去人们用东壁土调水，治疗小儿嗜食泥土的异食癖，是利用土气进入虫口从而将其驱除下行。道路中间被烈日晒热的土，可以治疗夏季中暑死亡（假死），是利用其温热之性来散发体内的郁热。如果浇灌冷水，会导致虚阳瞬间消散，病人就会死亡且无法救治。白垩土味苦、性温、无毒，《神农本草经》记载它主治妇女寒热症瘕、月经闭止及腹部积聚，是取土的中气，来祛除妇女因长期在厕所劳作而积累的秽浊之气。《千金方》用它治疗妇女带下等疾病，是因为土能胜湿，而白色兼入气分，其中邯郸出产的质量最好。黄土味甘、性平、无毒，是中央的正色，不沾染污秽，所以颜色不发黑，用于治疗冷热泄痢、赤白带下、腹内绞痛、便血，以及解除各种药物毒、闭口椒毒、野蘑菇毒。蚯蚓泥可以治疗小儿阴囊肿热，是利用其寒性能解毒。对于热病出现谵语、狂乱但没有燥屎结聚不可攻下的情况，用蚯蚓泥凉水调服。蜣螂转丸土可以治疗反胃、吐利、霍乱，用汤药淋洗后绞取汁液饮用；用醋调匀涂抹项部的瘿瘤。土蜂窝上的细土，主治头风肿毒及蜂蝎螫伤，用醋调和敷贴。胡燕窝土，主治风瘙瘾疹及恶刺疮、浸淫疮，用水调和敷贴。《短剧方》用它治疗湿疡疥疮，《外台秘要》治疗蠼蛄尿疮，《千金方》治疗痈疽丹毒。鼠壤土能通肾气、解毒邪，是取其搜风达窍的作用。蚁垤土（蚂蚁窝土）能促使胞衣和死胎排出，炒热后熨烫心下部，胞衣即可自行排出。烧尸场上的土，治疗多梦魇寐，放在枕头中并涂抹关元穴及肚脐。螺蛳泥主治反胃吐食，取一斗螺蛳用水浸泡，取出泥土晒干，每次服用一钱，用火酒调服。犬屎泥治疗妊娠伤寒，涂抹腹部以保胎。井底泥治疗妊娠热病，涂抹胸部、肚脐及丹田以护胎，同时也治疗烫伤烧伤。伏龙肝即灶心赤土，《神农本草经》说：味辛、微温，主治妇女崩中吐血。《千金方》称之为釜月下土，指正对锅底中心处的土。但必须是日常做饭用的灶心土才好，如果是煮汤羹用的，味道咸而不堪入药。伏龙肝能止咳逆吐血，消除痈肿毒瓦斯，因为失血过多，中气必然受损，所以取微温之性来调和血脉。消除痈肿毒瓦斯，是利用其辛散软坚的作用。《日华子》记载它能催生，是取其温中且镇重下坠的特性。对于胎漏不止、产后下利，都宜煮水澄清去渣，代替水煎药，以温补脾脏，调和营血。《千金方》治疗中风口噤、狂躁不识人，都用搅水澄清后服用。还有久痢不止、横生逆产、胞衣不下，都用醋调涂脐腹部有效。小儿重舌，用醋涂擦。发背疮，用酒调浓敷，干了就换，平了才停。杖疮肿痛，用香油调涂。灸疮肿痛，煮水热淋，这些都是孙思邈的方法。《外台秘要》治疗一切痈肿，和蒜泥贴敷，干了再换；百草霜是烧百草留下的煤烟灰，能止血散瘀，上下各部位出血都主治。又治阳毒发斑，取温性以解毒散火。釜脐墨治疗阳毒发狂，在黑奴丸中使用。《千金方》治疗卒中、恶卒心痛、舌头突然肿大等疾病。又有下死胎方，用百草霜二钱、伏龙肝五钱研为细末，用酒调童便服用二钱，过一会儿再服三钱，死胎即可排出。梁上尘，一名乌龙尾，治疗妊娠胎动、横生逆产，以及金疮鼻衄、疔肿恶疮、小儿赤丹，取其轻浮之性，以疏散久积之气。清烟墨灰能止住吐血衄血逆上行，或者生藕汁、莱菔汁或鲜地黄自然汁，磨墨服用即可止血。但是必须将墨烧成灰去除火毒后再使用，只是不要用干地黄和水捣磨。柏叶汁、甘蕉汁，都不适宜，往往在止血后有瘀积的隐患。飞丝入眼及一切尘物入眼，磨浓墨点眼自出，或用灯心草蘸墨汁频繁卷拭。砂锅取年久炊食者，研细水飞，治疗黄肿积块，酒服五钱，潞州产的为佳。孩儿茶，一名乌爹泥，性涩收敛，止血收湿，是金疮止痛生肌的重要药物。白磁器研细水飞，敷痈肿，可代替针砭。又能点目去翳。粪坑底泥治疗背疮疔肿痈毒，阴干为末，新水调敷，疼痛立即停止。坑同蝉蜕、全蝎末作饼，香油煎滚，温服，以药渣敷疔疮四周，疔疮自出。
The Spleen belongs to Earth, favoring dryness and disliking dampness. Therefore, earth from the east wall exposed to the sun is selected to guide the ascending Qi of True Fire, tonifying Earth to overcome dampness, thereby naturally stopping vomiting and diarrhea. When used in pharmaceuticals, this earth serves merely as a guiding herb for the Spleen and Stomach. In ancient times, people mixed earth from the east wall with water to treat pica (geophagia) in children, utilizing the Earth element to enter the parasite's mouth and expel it downwards. Hot earth from the middle of roads can treat summer heat stroke (apparent death), utilizing its warmth to dissipate internal heat. If cold water is poured on it, the deficient Yang will vanish instantly, leading to death that cannot be saved. Kaolin (White Acre Earth) is bitter, warm, and non-toxic. The *Shennong Bencao Jing* states it treats chills and fever, mass formations, amenorrhea, and abdominal accumulations in women, taking the intermediate Qi of Earth to dispel accumulated filth from women who frequently work in latrines. The *Qianjin Fang* uses it to treat leukorrhea and other diseases in women because Earth can overcome dampness, and white color enters the Qi level; the variety from Handan is considered superior. Yellow Earth is sweet, neutral, and non-toxic. It is the correct color of the Center, unsoiled by filth, hence not black. It treats cold and hot dysentery, red and white discharge, severe abdominal cramping, hematochezia, and detoxifies various drug poisons, closed-mouth pepper poison, and wild mushroom poison. Earthworm soil treats scrotal heat swelling in children, utilizing its cold nature to detoxify. For febrile diseases presenting with delirium and mania without dry stool accumulation requiring purgation, earthworm soil mixed with cool water is taken orally. Dung beetle rolling soil treats retroflexion, vomiting and diarrhea, and cholera; it is administered by steeping in decoction, squeezing out the juice, and drinking. Mixed with vinegar and applied to the neck, it treats goiters. Fine earth from termite mounds treats head wind, swelling, toxicity, and bee/wasp stings; mixed with vinegar and applied externally. "Hu Yan Wo" earth treats wind-induced urticaria, malignant thorn sores, and oozing sores; mixed with water and applied externally. The *Duanju Fang* uses it for wet eczema and ringworm; the *Waitai Mi Yao* for ureteral insect bite sores; the *Qianjin Fang* for carbuncles and erysipelas. Rat burrow earth promotes Kidney Qi and detoxifies evil pathogens, utilizing its ability to search for wind and open orifices. Ant hill earth expels the placenta and dead fetus; when heated and applied to the epigastrium, the placenta passes spontaneously. Earth from burnt corpse grounds treats frequent nightmares; placed in the pillow and applied to Guanyuan (CV4) and the umbilicus. Snail mud treats retroflexion and vomiting; one dou of snails are soaked in water, the mud extracted and dried, then one qian is taken per dose, mixed with fire wine. Dog feces mud treats pregnancy complicated by Cold Damage; applied to the abdomen to protect the fetus. Mud from the bottom of wells treats febrile diseases during pregnancy; applied to the chest, umbilicus, and Dantian to protect the child, and also treats burns and scalds. Fulonggan (Dragon's Liver / Red Earth at the Bottom of the Cooking Stove) is red earth from the center of the stove. The *Shennong Bencao Jing* states: pungent, slightly warm, treating metrorrhagia and hematemesis in women. The *Qianjin Fang* calls it "Fuzhou Xia Tu" (Earth under the cauldron), referring to the earth directly beneath the center of the pot. However, only earth from stoves used daily for cooking rice is effective; earth from stoves used for boiling soup is too salty and unsuitable for medicine. It stops coughing with inverted Qi and hematemesis, and resolves carbuncle swelling and toxic vapors. Since excessive blood loss inevitably damages Middle Qi, its slightly warm nature is used to harmonize the blood vessels. Its ability to resolve carbuncle swelling and toxic vapors relies on its pungent dispersing and softening-hardening properties. *Ri Hua Zi* records its use in inducing labor, taking advantage of its warming and heavy-descending nature. For threatened miscarriage and postpartum diarrhea, it should be boiled, clarified, filtered, and used as water to decoct other herbs, to warm the Spleen and harmonize Ying and Blood. The *Qianjin Fang* treats stroke with locked jaw and mania with amnesia by administering clarified water prepared from it. It is also effective for chronic dysentery, breech presentation, dystocia, and retained placenta when mixed with vinegar and applied to the abdomen. For infant double tongue, apply with vinegar. For back carbuncles, apply thickly with wine; change when dry until healed. For beating injuries with swelling and pain, apply with sesame oil. For moxibustion wounds with swelling and pain, wash with hot decoction; these are methods of Sun Simiao. The *Waitai Mi Yao* treats all carbuncles by applying with garlic paste; change when dry. Baicaoshuang (Black Dust from Hundred Herbs) is the soot from burning hundred herbs; it stops bleeding and disperses stasis, treating bleeding from all parts of the body. It also treats yang toxin causing macules, using its warmth to detoxify and dissipate fire. Fuqi Mo (Ink from Cauldron Rim) treats yang toxin causing mania and is used in Heinu Wan. The *Qianjin Fang* treats sudden stroke, acute heart pain, and sudden tongue swelling. Another formula for expelling dead fetus uses two qian of Baicaoshuang and five qian of Fulonggan ground into fine powder, taken with wine and child's urine; after a short while, take three more qian, and the fetus will pass. Dust from roof beams, also called Wulongwei (Black Dragon Tail), treats fetal movement, breech presentation, traumatic nosebleeds, carbuncles and malignant sores, and infant erysipelas, utilizing its light and floating nature to dissipate long-standing stagnant Qi. Clear smoke ink ash stops upward reversal of vomiting and nasal bleeding; mixed with fresh lotus root juice, radish juice, or fresh Rehmannia natural juice and ground for oral administration, it stops bleeding immediately. However, the ink must be burned to ash to remove fire toxicity before use; do not use dried Rehmannia mixed with water for grinding. Leaf of Biota juice and banana juice are unsuitable, often leaving residual stasis after bleeding stops. For flying silk or any dust entering the eyes, grind strong ink and apply to the eye to extract the object, or frequently roll the eye with a rush dipped in ink juice. Sand pots made over many years of cooking are ground fine and processed by water levigation; treated yellow edema and mass formations are cured by taking five qian with wine; the variety from Luzhou is best. Haiercha (Child Tea), also called Udini, is astringent and convergent, stopping bleeding and absorbing dampness; it is an essential herb for stopping pain and generating flesh in traumatic injuries. Ground white porcelain processed by water levigation is applied to carbuncles, serving as an alternative to acupuncture and lancet. It can also be applied to the eyes to remove nebula. Mud from the bottom of cesspits treats back sores, carbuncles, and toxic swellings; dried in shade, ground into powder, and applied with fresh water, pain stops immediately. Mixed with cicada slough and full scorpion powder to make cakes, fried in boiling sesame oil, taken warm internally, and the dregs applied around the carbuncle, the carbuncle will emerge spontaneously.