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Treats generalized edema, panting and crying out, thirst, and constipation of both stool and urine.
Qianghuo (Notopterygii Rhizoma et Radix), Qinjiao (Gentianae Macrophyllae Radix), Binglang (Arecae Semen), Dafupi (Aurantii Fructus Pericarpium), Shanglu (Phytolaccae Radix), Fulingpi (Poriae Cortex), Jiaomu (Zanthoxyli Semen), Mutong (Akebiae Caulis), Zexie (Alismatis Rhizoma), Chixiaodou (Phaseoli Angularis Semen) in equal parts, add Jiangpi (Zingiberis Recens Pericarpium), decoct in water and take orally.

[Note] The *Neijing* states: The Sanjiao (Triple Burner, responsible for qi transformation and fluid metabolism) is the official of drainage, and the water passages emerge from it. If fluids are obstructed internally, and wind-cold binds externally, then the qi transformation of the Sanjiao cannot function normally. The Upper Jiao is like mist, the Middle Jiao like fermentation, both serving to allow the Lower Jiao to act like a ditch for excretion. This leads to water qi overflowing outward, causing swelling of the skin; water retention internally causing abdominal distension; attacking upward causing panting, cough, vomiting, and regurgitation; accumulating downward causing difficult urination. All these various symptoms are treated by methods that essentially address both exterior and interior patterns. Xiao Qinglong Tang (Minor Blue Dragon Decoction), Zhenwu Tang (True Warrior Decoction), Yebing Tang (Suppress Miasma Decoction), Wuling San (Five-Ling Powder), and Shuozao Yinzi (Draining and Piercing Decoction) are five formulas used to treat conditions with water qi accompanied by exterior-interior syndromes. Xiao Qinglong Tang treats exterior-interior cold-excess with water qi in the center; Zhenwu Tang treats interior deficiency-cold with concurrent water qi. In both these syndromes, there is no internal distension nor external swelling. Therefore, one uses Mahuang (Ephedrae Herba) and Guizhi (Cinnamomi Ramulus) to disperse cold and promote water movement; the other uses Shengjiang (Zingiberis Rhizoma Recens) and Fuzi (Aconiti Lateralis Radix Praeparata) to warm cold and control water. Yebing Tang treats exterior-interior heat-excess with water qi in the center; Wuling San treats exterior-interior deficiency-heat with water qi in the center. Thus, one uses Mahuang and Shigao (Gypsum Fibrosum) to dissipate water from the skin and clear heat from the muscles to reduce swelling; the other uses Guizhi, Fuling (Poria), Baizhu (Atractylodis Macrocephalae Rhizoma), and Zexie to resolve muscle-surface heat and promote diuresis of retained water to stop vomiting. Shuozao Yinzi treats simultaneous exterior-interior excess, neither leaning towards cold nor heat, but with excessive damp-water, manifesting as generalized edema, panting, distension, and constipation. Therefore, Shanglu is used as the sovereign herb to specifically conduct water throughout the body. Qianghuo, Qinjiao, Dafupi, Fulingpi, and Jiangpi are used as assistants to conduct water located at the exterior, dispersing it through the skin; Binglang, Chixiaodou, Jiaomu, Zexie, and Mutong are used as assistants to conduct water located at the interior, expelling it through the two bowels. By dispersing the pathogenic factor from above, below, inside, and outside, the strategy mirrors the intent of Yu the Great in dredging rivers and canals. Regarding Yebing Tang: Banxia (Pinelliae Rhizoma) is added because of rebellious qi causing panting, using it to direct rebellious qi downward; Fuzi is added because of sweating and aversion to wind, using it to scatter the exterior and secure yang. Xiao Qinglong Tang adds Shigao because of panting accompanied by irritability, using it to simultaneously clear stomach heat. Wuling San replaces Baizhu and Guizhi with Huashi (Talcum) and Ejiao (Asini Corii Colla) to become Zhuling Tang (Polyporus Decoction), which specifically clears the yin aspect while treating water. Zhenwu Tang removes Shengjiang and adds Renshen (Ginseng Radix) to become Fuzi Tang (Aconite Decoction), which specifically warms yang without treating water. From this, we can see that Zhang Zhongjing, when using formulas, adds major cold-natured herbs among groups of warm agents, and adds acrid-hot herbs among major cold agents. Removing Guizhi and adding Huashi prevents the formula from acting on the exterior; removing Shengjiang and adding Renshen shifts the focus away from treating water. Such transformations and variations are so divine and subtle that they are beyond the comprehension of rigid and inflexible scholars.