四证，方二首
太阳中风，脉浮紧，发热恶寒，身体疼痛，不汗出而烦，大青龙汤主之。若脉微弱，汗
出
麻黄（去节，六两） 桂枝（二两） 甘草（二两，炙） 杏仁（四十枚，去皮尖两仁
者） 生
姜（三两，切） 大枣（十枚，擘） 石膏（如鸡子大，碎，绵裹）
上七味，以水九升，先煮麻黄减二升，去上沫，纳诸药，煮取三升，去滓，温服一升。
取微似汗。汗出多者，温粉粉之，一服汗者，勿再服；若复服，汗出多，亡阳逆虚，恶风，
躁不得眠。
伤寒，脉浮缓，其身不疼，但重，乍有轻时，无少阴证者，可与大青龙汤发之（用上方）
伤寒表不解，心下有水气，咳而发热，或渴，或利，或噎，或小便不利，少腹满，或喘
者，小青龙汤主之，方∶
麻黄（去节，三两） 芍药 细辛 干姜 甘草（炙） 桂枝（各三两） 五味子 半
夏（各
半升，洗）
上八味，以水一斗，先煮麻黄，减二升，去上沫，纳诸药，煮取三升，去滓，温服一升
。渴则去半夏，加栝蒌根三两；微利者，去麻黄，加荛花一鸡子大，熬令赤色；噎者去麻黄，
加附子一枚，炮；小便不利，少腹满，去麻黄，加茯苓四两；喘者，去麻黄，加杏仁半升，
去皮。
伤寒，心下有水气，咳而微喘，发热不渴，服汤已而渴者，此为寒去为欲解，小青龙汤
主之（用上方）。
Four syndromes, two prescriptions.
In Taiyang Wind-Strike (Taiyang Fengzhong), characterized by a floating and tight pulse, fever with aversion to cold, body pain, absence of sweating accompanied by irritability, Da Qing Long Tang (Major Blue Dragon Decoction) is the primary treatment. If the pulse is faint and weak with sweating present, this prescription should not be used.
Ephedrae Herba (Mahuang, 麻黄) [6 liang], removed nodes; Cinnamomi Ramulus (Guizhi, 桂枝) [2 liang]; Glycyrrhizae Radix et Rhizoma (Gancao, 甘草) [2 liang], honey-fried; Armeniacae Semen Amarum (Xingren, 杏仁) [40 seeds], skin and pointed ends removed, retaining those with two kernels; Zingiberis Rhizoma Recens (Shengjiang, 生姜) [3 liang], sliced; Ziziphi Jujubae Fructus (Dazao, 大枣) [10 fruits], split open; Gypsum Fibrosum (Shigao, 石膏) [size of a chicken egg], crushed, wrapped in silk gauze.
The above seven ingredients are decocted in nine sheng of water. First, boil Ephedrae Herba until the volume reduces by two sheng, skim off the foam on the surface, then add the remaining herbs. Continue boiling until three sheng remain. Strain the dregs. Take one sheng warm. The goal is to induce a slight, uniform perspiration. If sweating is excessive, apply warm powder to the body to stop it. If sweating occurs after the first dose, do not take further doses. Re-administration may lead to excessive sweating, resulting in Yang collapse (Wang Yang), counterflow deficiency, aversion to wind, restlessness, and insomnia.
In Shanghan (Cold Damage), if the pulse is floating and slow, the body is not painful but feels heavy, occasionally feeling lighter, and there are no Shaoyin syndrome signs, Da Qing Long Tang (Major Blue Dragon Decoction) may be administered to induce sweating (using the aforementioned prescription).
If Shanghan exterior syndrome is unresolved, with fluid retention (Water Qi) in the heart region, presenting with cough and fever, or thirst, or diarrhea, or a sensation of choking in the throat, or dysuria with lower abdominal fullness, or wheezing, Xiao Qing Long Tang (Minor Blue Dragon Decoction) is the primary treatment. Prescription:
Ephedrae Herba (Mahuang, 麻黄) [3 liang], removed nodes; Paeoniae Radix (Shaoyao, 芍药); Asari Radix (Xixin, 细辛); Zingiberis Rhizoma (Ganjiang, 干姜); Glycyrrhizae Radix et Rhizoma (Gancao, 甘草), honey-fried; Cinnamomi Ramulus (Guizhi, 桂枝) [each 3 liang]; Schisandrae Fructus (Wuweizi, 五味子); Pinelliae Rhizoma (Banxia, 半夏) [each half sheng], washed.
The above eight ingredients are decocted in ten sheng of water. First, boil Ephedrae Herba until the volume reduces by two sheng, skim off the foam, then add the remaining herbs. Continue boiling until three sheng remain. Strain the dregs. Take one sheng warm. If thirsty, remove Pinelliae Rhizoma and add Trichosanthis Radix (Gualougen, 栝蒌根) [3 liang]. If there is mild diarrhea, remove Ephedrae Herba and add Aconiti Lateralis Radix Preparata (Fuzi, 附子) [one piece, processed] (Note: Text says "Ranghua" but contextually often implies modification for specific symptoms, however strictly translating text: Add Euphorbiae Pekinensis Radix (Ranghua, 荛花) [size of a chicken egg], fried until red). If there is a sensation of choking, remove Ephedrae Herba and add one processed Aconitum carmichaelii lateral root (Pao Fuzi, 炮附子). If dysuria with lower abdominal fullness, remove Ephedrae Herba and add Poria (Fuling, 茯苓) [4 liang]. If wheezing, remove Ephedrae Herba and add Armeniacae Semen Amarum (Xingren, 杏仁) [half sheng], skin removed.
In Shanghan, with fluid retention in the heart region, presenting with cough and mild wheezing, fever without thirst, if the patient becomes thirsty after taking the decoction, this indicates that the cold pathogen has departed and the condition is about to resolve. Xiao Qing Long Tang (Minor Blue Dragon Decoction) remains the primary treatment (using the aforementioned prescription).