《病源论》云∶谷道痒者，由胃弱肠虚，则蛲虫下侵谷道。重者食于肛门，轻者但痒也。
《葛氏方》治下部痒痛如虫啮者∶
胡粉、水银以枣膏和调，绵裹导之。
又方∶杏仁熬令黑，捣取膏涂之。
又方∶高鼻蜣螂烧末，绵裹纳孔中，当大蛘（弋掌反）虫出。
又方∶桃叶捣一斛，蒸之，纳小口器中，大孔布上坐，虫死。
《录验方》若下部痒痛如虫啮者∶
小豆一升，好苦酒五升，煮豆熟出干，干复纳酒，酒尽止。末，酒服方寸匕，日三。
《徐伯方》治谷道忽痒痛，肿起欲生肉突，出方∶
槐白皮（六两） 甘草（三两）
凡二物，以豆汁煮，渍故帛敷之，热即易。
《新录单方》治谷道中有虫痒者∶
艾三升，水五升，煮取二升，二服。
又方∶诸肉炙令香，匝熨，虫皆出。
《极要方》卒暴冷下部疼闷方∶
烧砖令热，大醋泼之，三重布覆，坐上取瘥止。（《千金方》同之。）
《集验方》治虫食下部方∶
胡粉、雄黄分等，末，着谷道中。
《集验方》治谷道赤痛方∶
菟丝子熬令黄黑，和以鸡子黄，以涂之，日三。
又方∶取杏仁熬令黄，捣作脂涂之。
《病源论》云∶谷道、肛门，大肠之候。大肠虚热，其气冲热结肛门，故令生疮。
《葛氏方》治下部卒有疮方∶
捣蛴螬涂之。
又方∶煮豉以渍之。
又方∶豆汁以摩墨导之。
《范汪方》治下部卒有疮若转深者∶
乌梅（五十枚） 盐（五合）
水七升，煮取三升，分三服。
又方∶常煮举皮饮之。（以上《葛氏方》同之。）
The *Treatise on the Pathogenesis of Various Diseases* states: Anal pruritus is caused by weak stomach qi and empty intestines, allowing pinworms to descend and invade the anus. In severe cases, the worms feed within the anal canal; in mild cases, there is merely itching.
The *Ge's Formulas* for treating lower region (referring to the genital and anal areas) pruritus and pain, feeling as if bitten by insects:
Mix lead carbonate (Hu Fen) and mercury with jujube paste, wrap in cotton, and insert as a suppository.
Another formula: Roast almonds until black, pound into a paste, and apply topically.
Another formula: Burn high-nosed dung beetles (*Scarabaeus*) into powder, wrap in cotton, and insert into the anal orifice; large intestinal worms will be expelled.
Another formula: Pound one hu of peach leaves, steam them, place in a vessel with a small opening, and have the patient sit over it until the worms die.
The *Lu Yan Formulas*: If the lower region suffers from pruritus and pain as if bitten by insects:
Take one sheng of adzuki beans and five sheng of good sour wine. Boil the beans until cooked, remove and dry them, then return them to the wine until the wine is absorbed. Grind into powder, take one cun bi (a square inch measure) with wine, three times daily.
The *Xu Bo Formulas* for sudden anal pruritus and pain with swelling and protrusion resembling flesh tags:
Bark of the pagoda tree (*Styphnolobium japonicum*, Liu Liang), Licorice root (*Gan Cao*, San Liang).
Boil these two ingredients in soybean juice, soak an old cloth in it, and apply to the affected area. Replace when cool.
The *Newly Recorded Single Formulas* for anal pruritus caused by worms:
Three sheng of mugwort (*Ai Ye*), five sheng of water. Boil to obtain two sheng of decoction, divide into two doses.
Another formula: Roast various meats until fragrant, use for hot compresses (fumigation/irrigation); the worms will emerge.
The *Ji Yao Formulas* for sudden cold-induced pain and oppression in the lower region:
Heat bricks until red, splash with strong vinegar, cover with three layers of cloth, and sit upon them until cured. (Same as in the *Qian Jin Fang*).
The *Ji Yan Formulas* for worm erosion of the lower region:
Lead carbonate (Hu Fen) and realgar (Xiong Huang) in equal parts, grind into powder, and apply inside the anus.
The *Ji Yan Formulas* for anal erythema and pain:
Roast Cuscuta seeds (Tu Si Zi) until yellow-black, mix with egg yolk, and apply topically, three times daily.
Another formula: Take almonds, roast until yellow, pound into a lipid-like paste, and apply.
The *Treatise on the Pathogenesis of Various Diseases* states: The "grain passage" (anus) is the external manifestation of the Large Intestine. Deficient heat in the Large Intestine causes qi to rush and knot at the anus, thus leading to sores.
The *Ge's Formulas* for sudden sores in the lower region:
Pound larvae of the cockchafer (*Qi Lao*) and apply topically.
Another formula: Boil fermented soybeans (*Chi*), and use the infusion to soak the area.
Another formula: Use soybean juice to grind ink, form into a suppository, and insert.
The *Fan Wang Formulas* for sudden sores in the lower region that deepen:
Dried plum fruit (Wu Mei, 50 pieces), Salt (Wu He).
Add seven sheng of water, boil to obtain three sheng, divide into three doses.
Another formula: Frequently boil whole beans (with skin) and drink. (Same as above in *Ge's Formulas*).