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Treats diarrhea caused by exterior heat of the Yangming channel. Also treats the initial eruption of smallpox and chickenpox.

Qian Yi's Shengma Gegen Decoction (Cinnamon Twig and Pueraria Root Decoction) is composed of Shaoyao (Paeoniae Radix Alba) and Gancao (Glycyrrhizae Radix et Rhizoma Preparata). [Shengma (Cimicifugae Rhizoma) 3 qian, Gegen (Puerariae Radix) and Shaoyao each 2 qian, Zhi Cao (Prepared Licorice Root) 1 qian.] For Yangming fever accompanied by headache, [as well as symptoms such as eye pain, nasal dryness, and inability to sleep], it is effective for diarrhea with the appearance of macules, papules, or pustules.

The newly defined syndrome presents similarly to Taiyang disease, but is termed Yangming disease due to symptoms like eye pain, nasal dryness, and insomnia. This indicates a primary pathogenic invasion of the Yangming channel itself, rather than transmission from Taiyang. This formula imitates Zhang Zhongjing's Gegen Tang (Pueraria Root Decoction). It omits Shengjiang (Zingiberis Rhizoma Recens), Guizhi (Cinnamomi Ramulus), and Dazao (Jujubae Fructus) because it avoids the acrid-warm nature of ginger and cinnamon twig, and the cloying-sweet stagnation of jujube. By substitions Shengma (Cimicifugae Rhizoma) for Mahuang (Ephedrae Herba), it becomes an exterior-releasing agent for Yangming, distinct from those used for Taiyang. Gegen is sweet and cool; it generates fluids and clears excess heat. Combined with Shengma, it can vent and disperse the exterior heat originating from the Yangming channel itself, and can also lift clear yang to treat spontaneous diarrhea associated with combined Taiyang-Yangming involvement. However, diarrhea in Yangming often signals impending gastric excess and delirious speech. Therefore, Shaoyao’s bitter and sweet properties are used to nourish body fluids. If body fluids are not depleted, the stomach will not become dry and excessive. As for rashes and pox, they are conditions where heat exists both internally and externally, spreading from inside to outside. In the early stage, cooling and resolving methods are required.

A universal formula for wind-stroke affecting the Six Channels.

Xiao Xuming Tang (Minor Continuation Life Decoction): Guizhi (Cinnamomi Ramulus), Fuzi (Aconiti Lateralis Radix Praeparata), Chuanxiong (Chuanxiong Rhizoma); Mahuang (Ephedrae Herba), Renshen (Ginseng Radix et Rhizoma), Baishao (Paeoniae Radix Alba processed with wine), Xingren (Armeniacae Semen Amarum), Fangfeng (Saposhnikoviae Radix); Huangqin (Scutellariae Radix), Fangji (Stephaniae Tetrandrae Radix), Gancao (Glycyrrhizae Radix et Rhizoma). This formula treats wind-stroke affecting all six channels. [It universally treats wind-stroke causing limb paralysis, slurred speech, and both rigid (gang) and flaccid (rou) spasms. It also treats diarrhea caused by wind-pathogen in the Jueyin channel. Prescription: Fangfeng 1.1 qian, Guizhi, Mahuang, Renshen, Jiushaoyao (Wine-processed White Peony Root), Xingren, Chuanxiong, Huangqin, Fangji, Gancao each 0.8 qian, Fuzi 0.4 qian. Decoct with Shengjiang (Fresh Ginger) and Dazao (Jujube).]

Chen Xiuyuan stated: The sound emitted when heaven and earth exhale is called "yi" (groan/exhale), which transforms into wind. Gentle winds allow all things to grow, while violent winds destroy them. When wind pathogens injure humans, they carry the qi of severe cold and austere killing energy. Therefore, the combination of Guizhi, Shaoyao, Shengjiang, and Gancao in this formula constitutes the Guizhi Tang (Cinnamon Twig Decoction) from the *Shanghan Lun* (Treatise on Cold Damage); Mahuang, Xingren, and Gancao constitute the Mahuang Tang (Ephedra Decoction) from the *Shanghan Lun*. Combining these two formulas results in comprehensive therapeutic principles. However, since wind movement causes fire to rise, Huangqin (Scutellaria Root) is used to descend fire. Since wind dominance damages body fluids, Renshen (Ginseng) is used to generate fluids. When blood flows freely, wind extinguishes itself; thus, Chuanxiong and Shaoyao are used to promote blood circulation. Fangfeng (Saposhnikovia Root) drives out wind throughout the body and is a crucial herb for restoring order. Fuzi (Prepared Aconite) tonifies the root of Kidney and Mingmen (Gate of Vitality) and is a miraculous medicine for overcoming pathogens and consolidating the root. Fangji (Stephania Root), with its texture resembling wheel spokes, has the function of ascending and rotating circulation, used to unblock the large and small collaterals. Although there are many herbs, they are intricately coordinated. Sun Simiao once asked Zhang Zhongjing for guidance, and Zhang Zhongjing taught him only one formula.