Guizhi Tang (Cinnamon Twig Decoction), originating from Zhang Zhongjing's *Shanghan Lun* (Treatise on Cold Pathogenic Diseases), is the ancestral formula of harmonizing prescriptions. (It is listed first because Guizhi Tang serves as the prototype for all harmonizing formulas.) Shaoyao (White Peony Root, 3 liang) combined with Guizhi (Cinnamon Twig) enriches Stomach Qi; if Stomach Qi is sufficient, cold sensations are avoided. Furthermore, if pathogenic factors condense along the primary pathway of the Taiyang (Greater Yang) channel after administration, purgation must not be employed. Incorrect use of purgation will cause exterior pathogens to sink into the Yin aspect. In such cases, one should only resolve and harmonize from the exterior. If clear undigested food appears in the stool, supportive treatment is required. Only after the exterior syndrome is resolved can one attack the epigastric fullness (Pi); do not make errors in judgment. Guizhi is acrid and hot; individuals habitually consuming alcohol who take it may experience cold limbs (Jue). The combination of Guizhi and Mahuang (Ephedra Herb) harmonizes Ying (Nutritive) and Wei (Defensive) Qi and relieves acute pain. When irritability ceases, observe the condition further. Regarding the treatment of Taiyang disease with a floating pulse, signs of pathology may become apparent. Shaoyao stabilizes the interior and anchors floating Yin. One Zi (likely referring to Ziziphus Jujuba or similar, text implies processing by removing yellow skin) is added, and three doses are prepared. If sores or delirious speech occur, this indicates Gan'e (a type of throat disease). It entirely relies on bitter [cold herbs to clear heat] (text is fragmentary).