裆（取隐处者烧灰，方寸匕， 水和服。男取女者，女取男者）。
伤寒阴阳易者，此方主之。
伤寒男子新瘥，未及平复，妇人与之交，得病，名曰阳易；妇人伤寒新瘥，未及平复，
男子与之交，得病，名曰阴易。以无病患染着余毒而病，如换易也。取此物者，亦以病因于
阴阳感召而得，故亦以阴阳之理治之。又曰∶五味入口，咸入肾，腐入肾，秽入肾，乃浊阴
归地之意也。 裆味咸而腐秽，故能入少阴；烧之则温，故足以化气；灰之则浊，故足以溺
膀胱。经曰∶浊阴归六腑，是也。药物虽陋，而用意至微，不因其陋而忽之，则升仲景之阶
矣！
枳实（三枚） 栀子（十四枚） 豆豉（一升） 大黄（一两）
伤寒新瘥后，食复者，此方主之。
伤寒新瘥，胃气未复，内伤饮食，其热复至，名曰食复。枳实、大黄，能夺胃中之食；
栀子、香豉，能祛胸中之热。
白蜜二合，煎之作挺，长如指许，内便道中，病患以手急抱，欲大便时去之。
自汗，大便秘者，此法治之。
胃家实则自汗，自汗亡其胃液，则便秘。若以下药与之，则益亡其液矣，故用导法。导
法者，迎而夺之之兵也。
大猪胆一枚，入醋少许，取竹管五寸许，以一头入胆，一头内入谷道中， 汁灌入肛内
。顷当大便出。
阳明自汗，反小便利，屎虽硬不可攻者，宜行此法。
自汗，则胃亡津液，当小便不利，今小便反利，则热犹未实，屎虽硬，不可攻也，故以
此法导之。猪胆能泽大肠，入醋能敛肠液，故便难者得之则易。经曰燥者濡之。此法之谓也。
取隐蔽部位（即内裤裆部）的布料，选取靠近私处的那部分烧成灰，每次服用一方寸匕的量，用水送服。男性患者取女性穿过的，女性患者取男性穿过的。
伤寒病男子刚痊愈，身体尚未完全恢复，与妇女发生性交，从而染病，称为阳易；妇女患伤寒刚痊愈，身体尚未完全恢复，与男子发生性交，从而染病，称为阴易。这是因为无病之人沾染了余毒而发病，如同更换替换一样。选用此物治疗，也是因为病因在于阴阳相互感召所致，所以也用阴阳的道理来治疗。又说：五味入口，咸味入肾，腐败之物入肾，秽浊之物入肾，这是浊阴归于地下的意思。裤裆味道咸且腐败秽浊，所以能进入少阴经；烧成灰后性质变温，所以足以化气；成为灰烬后质地浑浊，所以足以通利膀胱。《内经》说：浊阴归于六腑，正是这个意思。药物虽然简陋，但用意极其精微，不因其简陋而忽视它，就能登上张仲景医学的高阶了！
伤寒病刚痊愈后，因饮食不当导致复发的，此方主治。
伤寒病刚痊愈，胃气尚未恢复，内伤饮食，热邪再次发作，称为食复。枳实、大黄，能消除胃中的积食；栀子、香豉，能清除胸中的郁热。
白蜜二合，煎煮制成条状，长度如手指粗细，纳入肛门中，病人用手紧紧抱住臀部，想要大便时取出。
胃家实热则自汗出，自汗出耗损胃中津液，则导致便秘。如果用泻下药攻下，则会进一步耗损津液，所以采用导法。导法，是迎头痛击、顺势夺邪的方法。
大猪胆一枚，加入少许醋，取五寸左右的竹管，将一头插入胆中，另一头插入肛门中，将胆汁灌入肛内。片刻之后应当排出大便。
阳明病自汗出，反而小便通畅，大便虽硬但不可攻下的，适宜使用此法。
自汗出，则胃中津液亡失，应当小便不利，现在小便反而通畅，说明热邪尚未结实，大便虽然硬，不可攻下，所以用此法导引。猪胆能滋润大肠，加入醋能收敛肠液，所以大便困难的病人用了就容易排便。《内经》说：燥者濡之（干燥的用滋润的方法治疗）。说的就是这种方法的道理。
Take the fabric from the crotch area (specifically the part closest to the private parts), burn it into ash, take one *fangcun bi* (a square-inch spoonful) as a dose, and swallow it with water. For male patients, use those worn by females; for female patients, use those worn by males.
This formula is indicated for *Yin Yang Yi* (Exchange of Yin and Yang) following Shaoyang disease.
When a male patient has just recovered from Shaoyang disease but has not yet fully regained his constitution, and engages in sexual intercourse with a woman, contracting illness, it is called *Yang Yi* (Yang Exchange); when a woman has just recovered from Shaoyang disease but has not yet fully regained her constitution, and engages in sexual intercourse with a man, contracting illness, it is called *Yin Yi* (Yin Exchange). This occurs because a healthy person contracts residual toxins, akin to a substitution or exchange. Selecting this material for treatment is also based on the principle that the cause stems from the mutual influence of Yin and Yang, thus treating it according to the logic of Yin and Yang. It is further stated: Among the five flavors entering the mouth, salty flavor enters the Kidney; putrid substances enter the Kidney; turbid/unclean substances enter the Kidney. This reflects the concept of "turbid Yin returning to the Earth." The crotch cloth is salty, putrid, and unclean, therefore it can enter the Shaoyin channel; burning it renders it warm, thereby sufficient to transform Qi; turning it into ash makes it turbid, thereby sufficient to promote urination via the Bladder. The Classic states: "Turbid Yin returns to the Six Fu organs," which is exactly this meaning. Although the medicinal material is humble, its intended application is extremely subtle. If one does not disregard it due to its humble nature, one ascends to the higher levels of Zhang Zhongjing's medical art!
Zhi Shi (Fructus Aurantii Immaturus, 3 pieces)
Zhi Zi (Gardeniae Fructus, 14 pieces)
Dou Chi (Sojae Preparata, 1 sheng)
Da Huang (Rhei Radix et Rhizoma, 1 liang)
This formula is indicated for *Shi Fu* (Food Relapse) occurring after the recent recovery from Shaoyang disease.
After Shaoyang disease has recently resolved, if the Stomach Qi has not yet recovered and dietary injury occurs, causing heat to reappear, it is called *Shi Fu* (Food Relapse). Zhi Shi and Da Huang can eliminate food accumulation in the Stomach; Zhi Zi and Xiang Chi (prepared Soybean) can dispel heat in the Chest.
Bai Mi (Honey, 2 he) is boiled and formed into suppositories, approximately the length and thickness of a finger, inserted into the anal canal. The patient should hold their buttocks tightly together with their hands and remove the suppository when they feel the urge to defecate.
This method is used for spontaneous sweating accompanied by dry stool constipation.
Stomach excess-heat leads to spontaneous sweating; spontaneous sweating depletes Stomach fluids, leading to constipation. If purgative medicines are used, it would further deplete fluids; therefore, a guiding method (*Dao Fa*) is employed. The guiding method is like a military tactic of intercepting and overcoming the pathogen directly.
One large Pig Gallbladder (Sus Scrofa Domesticum Vesica Biliae), mixed with a small amount of Vinegar. Take a bamboo tube about five cun long, insert one end into the gallbladder, and insert the other end into the anus. Infuse the bile juice into the rectum. Defecation should occur shortly thereafter.
For Yangming disease presenting with spontaneous sweating, yet urine flows freely, and although the stool is hard, it is not suitable for aggressive purgation, this method is appropriate.
Spontaneous sweating indicates depletion of Stomach fluids, which should result in scanty urination. However, since urination is currently free, it indicates that the heat has not yet solidified into an excess pattern. Although the stool is hard, aggressive purgation is contraindicated; thus, this guiding method is used. Pig gallbladder moistens the Large Intestine; adding vinegar helps astringe intestinal fluids. Therefore, patients with difficult defecation will find relief upon using this. The Classic states: "Moisten what is dry." This refers precisely to this method.