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Sanhua Tang from *Jiyao*: For wind-stroke presenting with exterior manifestations of the Six Channels, first treat with Jiajian Xuming Tang; if there is internal obstruction of bowel and bladder movements (defecation and urination), this formula is indicated.

Mudou (Magnoliae Officinalis Cortex), Dahuang (Rhei Radix et Rhizoma), Zhishi (Aurantii Fructus Immaturus), Qianghuo (Notopterygii Rhizoma et Radix) (each 8 fen). The above herbs are cut into pieces; each dose is 1 liang, decocted in water.

This is a purgative formula for treating pathogenic wind entering the interior, embodying the principle of using Chengqi Decoction in Cold Damage disorders. It must not be used unless there is internal excess accumulation.

Sofeng Wan (Search Wind Pill) by He Zizheng: Treats wind-heat attacking upward, causing blurred vision, tinnitus, nasal congestion, headache, vertigo, rebellious phlegm, salivary cough, epigastric and abdominal fullness and pain, and constipation of both bowels and bladder.

Ren Shen (Ginseng Radix), Fuling (Poria), Tiannanxing (Arisaematis Rhizoma), Bohe (Menthae Haplocalycis Herba) (each 0.5 liang); Gan Jiang (Zingiberis Rhizoma), Hanshuishi (Halloysitum Rubrum), Sheng Baifan (Alumen Crude) (each 1 liang); Ha Fen (Concha Meretricis et Cyprinis), Huang Qin (Scutellariae Radix), Dahuang (Rhei Radix et Rhizoma) (each 1 liang); Huashi (Kaolinitum), Qianniu (Pharbitidis Semen) (each 4 liang); Huoxiang (Agastaches Herba) (1 fen); Banxia (Pinelliae Rhizoma) (1 liang).

The above herbs are powdered and formed into pills the size of small beans, taken with Ginger Decoction, three times daily.

Note: Although named "Search Wind," this is actually a formula for purging excess heat and phlegm turbidity.

Fengtong Sheng San (Wind-Blocking Unblocking Powder) from *Xuanming*: Treats all types of wind-heat conditions.

Fangfeng (Saposhnikoviae Radix), Chuanxiong (Ligustici Chuanxiong Rhizoma), Danggui (Angelicae Sinensis Radix), Shaoyao (Paeoniae Radix Alba), Dahuang (Rhei Radix et Rhizoma), Mangxiao (Natrii Sulfas), Lianqiao (Forsythiae Fructus), Bohe (Menthae Haplocalycis Herba), Mahuang (Ephedrae Herba) (each 0.5 liang); Gancao (Glycyrrhizae Radix et Rhizoma) (2 liang); Shigao (Gypsum Fibrosum), Jiegeng (Platycodonis Radix), Huang Qin (Scutellariae Radix) (each 1 liang); Huashi (Kaolinitum) (3 liang); Baizhu (Atractylodis Macrocephalae Rhizoma), Shanzhi (Gardeniae Fructus), Jingjie Sui (Schizonepetae Spica) (each 0.5 liang). An alternative version removes Mangxiao and adds Niuxi (Achyranthis Bidentatae Radix), Ren Shen (Ginseng Radix), and Banxia (Pinelliae Rhizoma).

The above herbs are cut into coarse powder and decocted with fresh ginger.

Note: This formula acts on the Lung, Spleen, Bladder, Stomach, Liver, and Heart channels; it is also a formula that treats both exterior and interior, as well as qi and blood. Haizang (Zhang Yuansu) stated: Fangfeng and Mahuang are diaphoretic agents; Dahuang and Mangxiao are purgative agents; Shanzhi and Huashi promote urination. By combining exterior-releasing and interior-purging actions to advance together, it yields good results for miscellaneous diseases. However, when treating Cold Damage or Wind-Cold, it deviates from Zhongjing's principle that releasing the exterior and purging the interior should be distinct. During the Dading era, this medicine was prevalent and often effective. Why? At that time, although commoners had sufficient food and clothing, their minds were focused on taking medicine while their bodies endured no hardship; thus, even cooling medicines were often effective with few adverse changes. But during times of war and chaos, when even pickles and chaff are insufficient, coupled with the austere and killing qi of heaven and earth, how could one dare use cooling medicines as calmly as in peaceful times? Hence, there were many failures and few successes. This is akin to Zhongjing using Guizhi Tang at the end of the Han Dynasty, or Han Zhihe cautioning against Guizhi during the prosperity of the Song Dynasty. The differences in times and circumstances must not be ignored.