肘后疗伤寒有数种，庸人不能分别，今取一叶兼疗者，若初觉头痛肉热脉洪，起一二日
，便作此葱豉汤方。
葱白（一虎口） 豉（一升绵裹）
上二味以水三升，煮取一升，顿服取汗，若汗不出更作，加葛根三两，一方更加升麻三
两水五升，煮取二升，分温再服，徐徐服亦得，必得汗即瘥，若不得汗更作，加麻黄三两去
节服，取汗出为效。（文仲同）
又方
葱白（一握切） 米（三合） 豉（一升）
上三味，以水一斗，煮米少时，下豉后纳葱白，令大熟，取三升，分温三服，则出汗。
又方
豉一升 绵裹
上一味，以童子小便三升，煮取二升，分温再服，汗出为效，集验方加葱白一升切，云
神良。（支太医文仲备急同）
又方
葛根（四两切）
上一味，以水一斗，煮取三升，纳豉一升更煮，取一升半分温再服，取汗为瘥，又方捣
生葛根汁一二升服亦佳。
又疗伤寒汗出不歇已三四日，胸中恶欲令吐者方。
豉（三升绵裹） 盐（一两）
上二味，以水七升，煮取二升，半去滓，纳蜜一升，又煮三沸，顿服一升，安卧当吐，
如不吐，更服一升取吐为效。
又方
苦参（三分） 甘草（炙一分） 瓜蒂 赤小豆（各二七枚）
上四味切，以水一升，煮取半升，一服之当吐，吐不止者，作葱豉粥解之必息。忌海藻
菘菜。
又方
苦参 黄芩（各二两） 生地黄（半斤）
上三味切，以水八升，煎取二升，服一升，或吐下毒物。忌芜荑。
The *Zhouhou Beiji Fang* (Emergency Prescriptions Kept in the Sleeve) records several methods for treating Shanghan (Cold Damage), but laypeople find it difficult to distinguish between them. Here, a single formula capable of addressing multiple presentations is selected. If one initially perceives headache, muscle heat, and a surging pulse (Hong Mai, a rapid and forceful pulse), within one or two days of onset, prepare this Congchi Tang (Scallion and Fermented Soybean Decoction).
Congbai (White Part of Scallion Stem, quantity: one handful) Chichi (Fermented Soybean, 1 sheng, wrapped in silk gauze)
Take the above two ingredients, add three sheng of water, and boil until one sheng remains. Take the decoction in one dose to induce sweating. If sweat does not appear, prepare again, adding Gegen (Kudzu Root, 3 liang); another version adds Shengma (Cimicifugae Rhizoma, 3 liang), using five sheng of water, boiling until two sheng remain. Divide into two warm doses; slow administration is also acceptable. Recovery is achieved only when sweating occurs. If sweating still does not occur, prepare again, adding Mahuang (Ephedrae Herba, 3 liang, nodes removed), taking until sweating ensues as the sign of efficacy. (Wen Zhong’s record is identical.)
Another prescription:
Congbai (White Part of Scallion Stem, one handful, chopped) Mi (Rice, 3 ge) Chichi (Fermented Soybean, 1 sheng)
Take the above three ingredients, add ten dou of water, and boil the rice until slightly cooked. Then add Chichi, followed by Congbai, cooking until very soft. Extract three sheng of liquid, divide into three warm doses, which will induce sweating.
Another prescription:
Chichi (Fermented Soybean, 1 sheng, wrapped in silk gauze)
Take the above single ingredient, add three sheng of urine from a young boy, and boil until two sheng remain. Divide into two warm doses; sweating indicates efficacy. The *Jiyan Fang* (Collected Proven Prescriptions) adds one sheng of chopped Congbai, claiming it to be miraculous and excellent. (Zhi Taiyi Wen Zhong’s *Beiji Fang* [Emergency Prescriptions] is identical.)
Another prescription:
Gegen (Kudzu Root, 4 liang, chopped)
Take the above single ingredient, add ten dou of water, and boil until three sheng remain. Add one sheng of Chichi and boil further until one and a half sheng remain. Divide into two warm doses; sweating indicates recovery. Another method is to crush fresh Gegen to extract one to two sheng of juice and take it orally, which is also good.
Another prescription for treating Shanghan where sweating has been continuous for three or four days, accompanied by nausea in the chest and an urge to vomit:
Chichi (Fermented Soybean, 3 sheng, wrapped in silk gauze) Yan (Salt, 1 liang)
Take the above two ingredients, add seven sheng of water, and boil until two sheng remain. Remove the dregs, add one sheng of honey, and boil for three more boils. Take one sheng in one dose; lie down quietly and expect vomiting. If no vomiting occurs, take another sheng; vomiting indicates efficacy.
Another prescription:
Kushen (Sophorae Flavescentis Radix, 3 fen) Gancao (Licorice Root, roasted, 1 fen) Gudi (Momordicae Fructus) Xiaochidou (Adzuki Bean, each 14 seeds)
Chop the above four ingredients, add one sheng of water, and boil until half a sheng remains. Take in one dose; vomiting should occur. If vomiting persists indefinitely, consume Congchi Zhou (Scallion and Fermented Soybean Porridge) to resolve the symptoms, which will certainly stop. Avoid consuming Haizao (Sargassum) and Songcai (Chinese Cabbage).
Another prescription:
Kushen (Sophorae Flavescentis Radix) Huangqin (Scutellariae Radix, each 2 liang) Shengdihuang (Rehmanniae Radix Recens, half a jin)
Chop the above three ingredients, add eight sheng of water, and decoct until two sheng remain. Take one sheng; toxic substances may be expelled through vomiting or purgation. Avoid consuming Wuyi (Pistacia Chinensis Gum Resin).