`治伤寒中风脉浮，发热往来，汗出恶风，头项强，鼻鸣干呕，桂枝汤主之。随病加减
如下方。
以泉水一斗煮取四升分服一升，日三。自汗者，去桂枝加附子一枚。渴者去桂加栝蒌根
三两。利者去芍药、桂，加干姜三累、附子一枚炮。心下悸者，去芍药加茯苓四两。虚劳里
急正阳旦主之。煎得二升，纳胶饴半斤，为再服。若脉浮紧发热者，不可与之。
治伤寒发热身体疼痛方。
葛根（四两） 茯苓（三两） 麻黄 牡蛎 生姜（各二两） 甘草（一两）
上六味 咀，以水八升煮取三升，分三服。再服后得汗，汗通即止。（《古今录验》无
生姜、甘草。）
治伤寒温病方。
葛根（四两） 麻黄（一两） 黄芩 芍药 甘草（各二两） 大枣（十二枚）
上六味 咀，以水一斗煮取三升，饮一升，日三。三四日不解，脉浮者，宜重服发汗
。脉沉实者，宜以 豉丸下之。（《延年秘录》有桂心一两。）
治疫气伤寒三日以前不解者方∶
香豉（一升绵裹） 葱白（切一升） 童子小便（三升）
上三味，先熬豉葱令相得，则投小便煮取二升，分再服，徐徐服之，覆令汗，神验。
治伤寒时气温疫头痛壮热脉盛始得一二日者方∶
丹砂一两末之，以水一斗煮取一升，顿服之，覆取汗。
Treats Shanghan (Cold Damage) and Zhongfeng (Wind Strike) with a floating pulse, alternating fever and chills, spontaneous sweating, aversion to wind, stiffness of the head and neck, nasal congestion with dry retching. Guizhi Tang (Cinnamon Twig Decoction) is the primary prescription. Adjust according to the disease as follows:
Boil one dou (approx. 10 liters) of spring water until reduced to four sheng (approx. 4 liters). Divide into three doses, taking one sheng per dose, three times daily. For those with spontaneous sweating, remove Guizhi (Cinnamon Twig) and add one Paozhi Fuzi (Prepared Aconite Root). For thirst, remove Guizhi and add three liang of Gualougen (Trichosanthes Root). For diarrhea, remove Shaoyao (White Peony Root) and Guizhi, and add three liang of Ganjiang (Dried Ginger) and one Paozhi Fuzi (Prepared Aconite Root). For palpitations in the epigastrium, remove Shaoyao and add four liang of Fuling (Poria). For deficiency fatigue with abdominal urgency and pain, Zhengyang Dantan (Positive Yang Morning Tan Decoction) is indicated. Boil to obtain two sheng, add half a jin of Jiaoyi (Maltose), heat again, and take in divided doses. If the pulse is floating and tight with fever, this formula should not be used.
Formula for treating Shanghan (Cold Damage) with fever and body pain:
Gegen (Kudzu Root) (four liang), Fuling (Poria) (three liang), Mahuang (Ephedra Herb), Muli (Oyster Shell), Shengjiang (Fresh Ginger) (two liang each), Gancao (Licorice Root) (one liang).
The above six herbs are cut into small pieces. Boil in eight sheng of water until reduced to three sheng. Divide into three doses. After the second dose, if sweating occurs, stop medication once sweat flows freely. (Note: *Gujin Luyan* does not include Shengjiang or Gancao.)
Formula for treating Shanghan (Cold Damage) and Wenbing (Warm Disease):
Gegen (Kudzu Root) (four liang), Mahuang (Ephedra Herb) (one liang), Huangqin (Scutellaria Root), Shaoyao (White Peony Root), Gancao (Licorice Root) (two liang each), Dazao (Jujube Fruit) (twelve fruits).
The above six herbs are cut into small pieces. Boil in one dou of water until reduced to three sheng. Drink one sheng per dose, three times daily. If the condition persists after three to four days and the pulse is floating, it is appropriate to re-administer the dose to induce sweating. If the pulse is deep and solid, it is appropriate to use Chi Wan (Fermented Soybean Pill) to purge the interior. (Note: *Yannian Milu* includes one liang of Guixin [Cinnamon Bark].)
Formula for treating epidemic Qi Shanghan (Cold Damage) that has not resolved within three days:
Xiangchi (Prepared Fermented Soybean) (one dou, wrapped in silk cloth), Congbai (Green Onion White) (cut, one sheng), Tongzi Xiaonian (Child’s Urine) (three sheng).
The above three ingredients are first boiled together until their flavors meld. Then, add the child’s urine and boil until reduced to two sheng. Divide into two doses, take slowly, cover with blankets to induce sweating. This is highly effective.
Formula for treating Shanghan (Cold Damage), seasonal warm epidemics, presenting with headache, high fever, and a full/surging pulse, in the initial one or two days:
Zhusha (Cinnabar) (one liang), finely powdered. Boil in one dou of water until reduced to one sheng. Take in one single dose, cover with blankets to induce sweating.