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Treats tongue aphasia (inability to speak due to tongue stiffness) and leg flaccidity (inability to walk). This is referred to as the failure of Shaoyin (Lesser Yin) Qi to reach the extremities. Urgent warming treatment is required. This condition is called Fei syndrome (a type of stroke sequelae characterized by aphasia and lower limb paralysis).

Dihuang Yinzi (Rehmannia Decoction) is a formula for treating Shaoyin disease. It contains Rougui (Cinnamon Twig), Fuzi (Aconite Lateral Root Preparatio), Rongrongcao (Cistanche Herba), Fuling (Poria), and Shudihuang (Prepared Rehmannia Root). It also includes Maidong (Ophiopogon Tuber), Wuweizi (Schisandra Fruit), Yuanzhi (Polygala Root), Changpu (Acorus Rhizome), Shanyuzhu (Cornus Fruit), Bajitian (Morinda Officinalis Root), and Shihu (Dendrobium Stem). Boiling with Houbo (Mint Leaf) requires careful attention to dosage and preparation. (Rougui, Fuzi, Rongrongcao, Fuling, Shudihuang, Maidong, Wuweizi, Yuanzhi, Changpu, Shanyuzhu, Bajitian, Shihu, each 0.5 qian; Houbo 7 leaves. Decoct in 1.2 cups of water until 0.8 cup remains, take warm.)

Chen Xiuyuan stated: The Fire of Mingmen (Gate of Life) is fire within water, formerly named Longhuo (Dragon Fire). When this fire ascends, it causes tongue stiffness and aphasia, because the Kidney meridian nourishes the root of the tongue. If the fire ascends but does not descend, it causes sudden collapse and loss of consciousness, because the Qi of the Dantian desires to transform into cold wind and depart. The formula uses Rougui, Fuzi, Rongrongcao, and Bajitian to guide the fire downward. When Dragon Fire ascends, Water follows; thus, phlegm and saliva surge, because the root of phlegm is water. The formula uses Shudihuang, Fuling, Shanyao (Chinese Yam), and Shihu to stabilize the water source. When fire bursts into the Heart, it causes mental confusion and coma; the formula uses Yuanzhi and Changpu to open the orifices and revive consciousness. Wind movement triggers fire emission; the formula uses Maidong and Wuweizi to clear heat and astringe. The Kidney governs the bones of the entire body; when the Kidney is diseased, the bones cannot support the body, causing leg flaccidity and inability to walk. The twelve ingredients in the formula are used to tonify the Kidney. However, most of these herbs have heavy textures and sinking properties, used to suppress rebellious fire. Since fire is triggered by wind, which is formless and moves rapidly, light and clearing Houbo is used as a guiding agent. Furthermore, slight boiling prevents the heavy and turbid flavors from fully extracting, allowing the light and clearing aspects to ascend to the Yang aspect to disperse wind, while the heavy and turbid aspects descend to the Yin aspect to suppress rebellion. This is the subtlety of Liu Hejian's formula creation; Wang Ang and others never comprehended it, no wonder contemporary physicians are confused.

Treats Spleen flaccidity caused by Zhongfeng (Wind Stroke), tongue stiffness with aphasia, and hemiplegia. This shares the same therapeutic principle as Dihuang Yinzi, but whereas the latter focuses on the Kidney, this formula focuses on the Spleen. Zishou Jieyu Tang (Zishou Speech-Resolving Decoction) specifically requires Zhuli (Bamboo Sap) assisted by Jiangzhi (Ginger Juice). The formula contains Qianghuo (Notopterygium Rhizome), Fangfeng (Saposhnikovia Root), Rougui, Fuzi, Lingyangjiao (Saiga Antelope Horn), Suanzaoren (Ziziphus Seed), Tianma (Gastrodia Rhizome), and Gancao (Licorice Root), totaling ten ingredients. (Qianghuo 0.5 qian; Fangfeng, Fuzi, Lingyangjiao, Suanzaoren, Tianma, each 1 qian; Rougui 0.8 qian; Zhi Gancao (Honey-fried Licorice) 0.5 qian. Decoct in 2 cups of water until 0.8 cup remains, add Zhuli 5 qian and Jiangzhi 2 qian, mix and take. ○ Yu Jiayan treated symptoms where Kidney Qi failed to circulate to the tongue root by adding Gouqi (Goji Berry), Shouwu (Polygonum Multiflorum Root), Tiandong (Asparagus Tuber), Juhua (Chrysanthemum Flower), Shipu (likely Changpu/Acorus), and Xuanshen (Scrophularia Root).)

Chen Xiuyuan stated: This formula is similar to the previous one, but contains more exterior-releasing herbs, making it suitable for cases with severe external manifestations. The inclusion of Lingyangjiao in the formula is particularly exquisite.