治伤寒表不解,心下有水气,咳而微喘,干呕,发热不渴,或渴或利,或小便不利,少
腹满者;并治溢饮,身体重痛,肌肤悉肿。
麻黄(去节) 芍药 细辛 干姜 甘草 桂枝(各三两) 半夏 五味子(各半升) 水
一斗,先煮麻黄减二升,去沫,纳诸药,煮取三升,去滓,温服一升。(此方有加减法,
另详余所着《古方余论》中。
治肺胀咳而上气,烦躁而喘,脉浮者,心下有水气也。
小青龙汤原方加石膏二两。煮法同。强人服一升,虚人减之。
小青龙汤治水气,喘咳不渴呕利慰。(凡水停心下之证,多喘咳而不渴,此要诀也。其
余下利与小便不利,或然或不然也。)姜桂麻黄芍药甘,细辛半夏兼五味,备举辛温散水寒,
兼
病属有形,非一味发散所能除,故备举辛温以散水,兼用酸苦以安肺,于麻、桂二汤内,
不但留白芍之酸收,拘其发散之猛,再复五味、干姜摄太阳之气,监制其逆,细辛、半夏温
散水寒,从阴出阳,庶几水从汗解而不伤阴,此发汗散水之圣方也。)溢饮水肿服之奇,发
汗散水此所谓。(溢饮者,水肿也。水饮外溢于肌肤,旁流于四肢,故一身悉肿。然亦必有
喘咳见证,用此发汗散水,其效乃奇。)肺胀烦躁加石膏,寒温并进斯为贵。(肺胀咳喘,多
因水饮,而烦躁则挟热邪,故于小青龙汤加石膏,寒温并进,水热俱蠲,于法尤为密矣。)
Treats cases where the exterior syndrome of Shanghan (Cold Damage) is not resolved, with fluid retention in the epigastrium, coughing with slight wheezing, dry retching, fever without thirst, or alternatively thirst, diarrhea, or inadequate urination with fullness in the lower abdomen; also treats Yi Yin (Overflowing Drink), characterized by heaviness and pain in the body, and swelling of the skin and muscles throughout.
Ephedrae Herba (Mahuang, 麻黄) [devoid of joints], Paeoniae Radix Alba (Baishao, 白芍), Asari Radix et Rhizoma (Xixin, 细辛), Zingiberis Rhizoma Recens (Ganjiang, 干姜), Glycyrrhizae Radix et Rhizoma (Gancao, 甘草), Cinnamomi Ramulus (Guizhi, 桂枝) [each 3 liang], Pinelliae Rhizoma Preparatum (Banxia, 半夏), Schisandrae Fructus (Wuweizi, 五味子) [each 0.5 sheng]. Use one dou of water. First decoct Ephedrae Herba until reduced by two sheng, skim off the foam, then add the remaining herbs. Decoct to obtain three sheng, strain, and take one sheng warm. (This formula has modification methods, detailed elsewhere in my work *Gu Fang Yu Lun*.)
Treats Fei Zhang (Lung Distension) with coughing and qi rebellion, irritability, wheezing, and a floating pulse, which indicates fluid retention in the epigastrium.
Add Shi Gao (Gypsum Fibrosum, 石膏) 2 liang to the original Xiao Qing Long Tang (Minor Blue Dragon Decoction). The decoction method is the same. Strong individuals take one sheng; weak individuals reduce the dose.
Xiao Qing Long Tang (Minor Blue Dragon Decoction) treats wheezing and coughing caused by fluid qi; lack of thirst, vomiting, or diarrhea are common symptoms. (In all cases where fluid stagnates in the epigastrium, wheezing and coughing without thirst are prevalent; this is a key diagnostic point. Diarrhea and inadequate urination may or may not occur.) The formula includes Ginger, Cinnamon Twig, Ephedra, White Peony Root, Licorice, along with Asarum, Pinellia, and Schisandra. It comprehensively employs acrid-warm herbs to disperse cold-fluid, and simultaneously uses sour-bitter herbs to calm the Lung. Within the frameworks of Ma Huang Tang (Ephedra Decoction) and Gui Zhi Tang (Cinnamon Twig Decoction), it retains the astringent nature of Bai Shao (White Peony Root) to restrain the vigorous dispersing action. Furthermore, Wu Wei Zi (Schisandra) and Gan Jiang (Dried Ginger) gather the Qi of the Taiyang (Greater Yang) channel to control rebellious flow. Xi Xin (Asarum) and Ban Xia (Pinellia) warm and disperse cold-fluid, allowing the pathogen to emerge from Yin to Yang. Thus, the fluid resolves through sweating without injuring Yin. This is a supreme formula for inducing sweating to dissipate fluid. (It yields miraculous results for Yi Yin (Overflowing Drink) and edema; this is referred to as inducing sweating to dissipate fluid.) Yi Yin (Overflowing Drink) refers to edema. When fluid overflows into the skin and muscles and flows laterally into the limbs, the entire body swells. However, wheezing and coughing must necessarily be present. Using this formula to induce sweating and dissipate fluid yields miraculous efficacy. (For Fei Zhang (Lung Distension) accompanied by irritability, adding Shi Gao (Gypsum Fibrosum) is best. Combining cold and warm properties is precious.) Fei Zhang (Lung Distension) with coughing and wheezing is often due to fluid retention, while irritability indicates the presence of heat pathogens. Therefore, adding Shi Gao (Gypsum Fibrosum) to Xiao Qing Long Tang (Minor Blue Dragon Decoction) combines cold and warm actions, dispelling both fluid and heat, making the therapeutic method particularly rigorous.