治狐惑病。状如伤寒。默默欲眠。目不得闭。卧起不安。蚀于喉为惑。蚀于阴
欲饮食。恶闻食臭。其面目乍赤乍黑乍白。蚀于上部则声嗄。宜此汤。蚀于下部则
苦参汤洗之。蚀于肛者。雄黄熏之。
甘草（四两。炙。） 黄芩 干姜 人参（各三两。） 半夏（半升。） 黄连（一
两。） 大枣（十二枚。）
上七味。以水一斗。煮取六升。去滓。再煎。取三升。温服一升。日三服。
歌曰 伤寒（论中）甘草泻心汤。却妙增参三两匡。彼治痞成下利甚。此医狐惑探源方。
元犀按。虫有情识。故能乱有情识之心脏。而生疑惑矣。虫为血化之物。故仍归于主血
之心
热。杂以辛苦之味。名曰泻心。意深哉。
苦参一升。以水一斗。煎取七升。去滓。熏洗。日三。
庞安时伤寒总病论。用苦参半斤。槐白皮、野狼牙根各四两。煎熏洗之。
雄黄一味为末。筒瓦二枚合之。烧向肛熏之。
歌曰 苦参汤是洗前阴。下蚀（从下而冲于上。）咽干热最深。更有雄黄熏法在。肛门
虫蚀亦
元犀按。蚀于喉为惑。蚀于阴为狐。狐惑病乃感风木湿热之气而生。寒极而化也。苦参
苦寒
取其
寒而
治脉数。无热微烦。默默但欲卧。汗出。初得之三四日。目赤如鸠眼。七八
黑。若能食者。脓已成也。此方主之。并治先便后血。
赤小豆（三升。浸令芽出。曝干。） 当归（十分。）
上二味。杵为散。浆水服方寸匕。日三服。
歌曰 眼 赤黑变多般。小豆生芽曝令干。豆取三升归十分。杵调浆水日三餐。
元犀按。此治湿热侵阴之病。大抵湿变为热则偏重于热。少阴主君火。厥阴主风木。中
见少
出火极似水之色。主以赤豆去湿清热解毒。治少阴之病。当归导热养血。治厥阴之病。下以
浆水。以和胃气。胃气与少阴和。则为火土合德。胃气与厥阴和。则为土木无忤。微乎微乎。
又按。或谓是狐惑病。或谓是阴阳毒病。然二者皆湿热蕴毒之病。金匮列于二证交界处。
即
治疗狐惑病。症状表现如同伤寒。患者神情沉默，想要睡觉，但眼睛无法闭合，躺下和坐起都感到不安。病灶腐蚀咽喉称为“惑”，腐蚀下部前阴称为“狐”。患者想饮食，却厌恶食物的气味，面部颜色忽红、忽黑、忽白。腐蚀在上部（咽喉）的，声音嘶哑，适宜使用甘草泻心汤；腐蚀在下部（前阴）的，用苦参汤清洗；腐蚀在肛门的，用雄黄熏蒸。
甘草（四两，炙过）。黄芩、干姜、人参（各三两）。半夏（半升）。黄连（一两）。大枣（十二枚）。
以上七味药，用水一斗，煮取六升药液，去掉药渣，再次煎煮，取三升药液。每次温服一升，每日服用三次。
歌诀说：《伤寒论》中的甘草泻心汤，巧妙增加人参三两以匡扶正气。它原本用于治疗痞证导致严重腹泻，此处用于医治狐惑病以探求病源。
元犀按语：虫类有情识，所以能扰乱有情识的心脏，从而产生疑惑。虫是由血液变化而成的，所以仍然归属于主司血液的心脏。加入热性药物，混杂辛苦味的药物，命名为“泻心”，其中的意蕴深远啊。
苦参一升，用水一斗，煎煮取七升药液，去掉药渣，用于熏洗，每日三次。
庞安时在《伤寒总病论》中，使用苦参半斤，槐白皮、野狼牙根各四两，煎煮后熏洗。
雄黄一味研为细末，用两片筒瓦合在一起，烧向肛门进行熏蒸。
歌诀说：苦参汤是清洗前阴的方剂，下部腐蚀（从下向上冲逆）导致的咽干热象最深。还有雄黄熏蒸的方法，可以治疗肛门被虫蚀的情况。
元犀按语：腐蚀咽喉称为惑，腐蚀前阴称为狐。狐惑病是由于感受风木湿热之气而生成，寒气极盛转化为热所致。苦参味苦性寒，取其寒凉之性……（原文此处有缺漏，根据上下文补全意译：取其清热燥湿之功）。
治疗脉象数，身体无发热但轻微烦躁，沉默只想睡觉，出汗。刚得病的三四天，眼睛发红像斑鸠的眼睛一样；到了七八天，眼睛周围变黑。如果能吃东西的，说明脓已经形成了。此方主治。同时也治疗先大便后出血的症状。
以上两味药，捣碎制成散剂，用浆水送服一方寸匕，每日三次。
歌诀说：眼睛赤色黑色变化多端，赤小豆生芽后晒成干品。赤小豆取三升，当归十分，捣碎调和后用浆水送服，每日三餐。
元犀按语：这是治疗湿热侵袭阴部的疾病。大致来说，湿气转化为热则偏重于热。少阴经主司君火，厥阴经主司风木，中见少阳相火。出现火极似水的颜色。主要用赤小豆去除湿气、清热解毒，治疗少阴经的病；用当归引导热邪并养血，治疗厥阴经的病。下方用浆水，来调和胃气。胃气与少阴经调和，就是火土合德；胃气与厥阴经调和，就是土木不相违背。微妙啊微妙啊。
又按语：有人说是狐惑病，有人说是阴阳毒病。然而这两种病都是湿热蕴结毒气的疾病。《金匮要略》将其列在这两个病症的交界处。即……（原文未完）
Treats Hu-Huo disease (a condition characterized by ulceration of the mouth, throat, and genitalia). The presentation resembles Taiyang disease (diseases affecting the exterior/initial stage). The patient is taciturn and desires sleep, yet cannot close their eyes; they are restless when lying down or sitting up. Ulceration in the throat is called "Huo" (Confusion); ulceration in the yin region (genitals) is called "Hu" (Fox). The patient desires food and drink but detests the smell of food. Their facial complexion fluctuates between red, black, and white. If ulcerated in the upper part (throat), the voice becomes hoarse; this decoction (Gancao Xiexin Tang) is indicated. If ulcerated in the lower part (genitals), wash with Kushen Tang. If ulcerated in the anus, fumigate with Xionghuang (Realgar).
Gancao (Licorice Root, 4 liang, honey-fried). Huangqin (Scutellaria Root), Ganjiang (Dried Ginger), Renshen (Ginseng Root) (each 3 liang). Banxia (Pinellia Tuber, half sheng). Huanglian (Coptis Rhizome, 1 liang). Dazao (Jujube Fruit, 12 pieces).
Take the above seven herbs. Add one dou of water, boil to obtain six sheng of liquid. Remove the dregs. Re-boil to obtain three sheng. Take one sheng warm, three times a day.
Verse:
In the Shanghan Lun, Gancao Xiexin Tang (Licorice Decoction for Draining the Heart) works wonders by adding three liang of Renshen to support the righteous qi. It originally treats severe diarrhea resulting from Pi syndrome (epigastric fullness/stagnation); here it is used as a source-seeking formula for Hu-Huo disease.
Commentary by Yuanxi: Insects have consciousness, thus they can disturb the conscious heart and generate confusion. Insects are formed from blood transformation, thus they return to the heart which governs blood. Adding heat-inducing herbs mixed with bitter and acrid flavors is named "Xiexin" (Draining the Heart); the meaning is profound.
Kushen (Sophora Root, 1 sheng). Boil in one dou of water to obtain seven sheng. Remove dregs. Use for fumigation and washing, three times daily.
Pang Anshi in *Shanghan Zongbing Lun* uses half a jin of Kushen, four liang of Huaibai Pi (Bark of Sophora Tree), and four liang of Yelangya Gen (Root of Potentilla chinensis), boiled for fumigation and washing.
Xionghuang (Realgar) alone, ground into powder. Place between two cylindrical tiles. Burn and fumigate towards the anus.
Verse:
Kushen Tang washes the anterior yin. Lower ulceration (rising from below to affect the throat) causes deep dryness and heat. There is also the method of Xionghuang fumigation for anal insect erosion.
Commentary by Yuanxi: Ulceration in the throat is Huo; ulceration in the yin region is Hu. Hu-Huo disease arises from contracting wind-wood damp-heat qi, transforming from extreme cold to heat. Kushen is bitter and cold, utilizing its cold nature... [text fragment] ...to clear heat and dry dampness.
Treats rapid pulse, no fever but slight irritability, taciturnity with desire to sleep, sweating. Within three to four days of onset, the eyes become red like a turtledove's eyes. By seven to eight days, the area around the eyes turns black. If the patient can eat, pus has formed. This formula is indicated. It also treats hematochezia (blood after stool).
Chixiaodou (Adzuki Bean, 3 sheng, soaked until sprouted, then dried in the sun). Danggui (Angelica Sinensis Root, 10 fen).
Grind the above two herbs into a powder. Administer one cunbi (square inch measure) with Jiangshui (fermented grain water), three times daily.
Verse:
Eyes change colors from red to black frequently. Adzuki beans are sprouted and dried. Take three sheng of beans and ten fen of Danggui. Grind and mix with Jiangshui for three meals daily.
Commentary by Yuanxi: This treats diseases where damp-heat invades the yin regions. Generally, when dampness transforms into heat, it leans heavily towards heat. Shaoyin (Lesser Yin) governs Ministerial Fire; Jueyin (Terminal Yin) governs Wind-Wood. The middle reveals Shaoyang (Lesser Yang) fire. The color resembling water emerges from extreme fire. Primarily use Chixiaodou (Adzuki Bean) to remove dampness, clear heat, and resolve toxicity, treating Shaoyin disease. Use Danggui to guide out heat and nourish blood, treating Jueyin disease. Below, use Jiangshui to harmonize Stomach Qi. When Stomach Qi harmonizes with Shaoyin, it is the virtue of Fire and Earth combining; when Stomach Qi harmonizes with Jueyin, Wood and Earth do not conflict. How subtle, how subtle!
Further Commentary: Some say it is Hu-Huo disease; others say it is Yin-Yang Du disease (Yin-Yang Toxic Disease). However, both are diseases of damp-heat accumulating into toxicity. *Jinkui Yaolue* lists it at the boundary of these two syndromes. That is... [text incomplete]