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Wu Shuqing stated: Danggui Shaoyao Tang (Angelica and Peony Decoction) is used to treat women with continuous metrorrhagia, where the blood color is bright red. This condition typically arises from overexertion and fatigue, leading to Spleen-Stomach deficiency, accompanied by shortness of breath, rebellious Qi, spontaneous sweating, fever with mental restlessness, aversion to food, limb fatigue, and loose stools. Li Dongyuan formulated this prescription; after one dose, all symptoms resolve. Generally speaking, for bleeding due to overexertion, if one adheres strictly to the theory of "Blood Heat" and uses Siwu Tang (Four Substances Decoction) added with Huangqin (Scutellaria Root), it will not be effective. This is because when Blood is deficient, Qi must also be supplemented. Metaphorically, Blood is like water, and Qi is like a dike; if the dike is firm, water does not burst forth recklessly; if Qi is consolidated, Blood does not flow recklessly. This is the natural principle. In this formula, Huangqi (Astragalus Root) is used in the largest quantity, followed by Baizhu (Atractylodes Macrocephala Rhizome). It combines Siwu Tang (which includes Shengdi Huang [Rehmannia Root] and Shudi Huang [Prepared Rehmannia Root]), assisted by Chenpi (Tangerine Peel), Gancao (Licorice Root), and Chaihu (Bupleurum Root). Unlearned physicians do not understand this principle and exclusively use cold-natured medicines, unaware that cold medicines damage Stomach Qi. Prolonged use further weakens Healthy Qi, making it impossible for Blood to be consolidated. Therefore, I specifically highlight this point.

Wu Shuqing stated: Li Dongyuan said, "Tonifying Qi in cases of Blood loss" is an ancient method. First tonify Stomach Qi to assist growth, hence it is said that "Yang generates Yin." Sweet-flavored herbs are the primary task; although the world believes sweet flavors only tonify Qi, they actually generate Blood, illustrating the principle of "Yang generating Yin." Thus, regulating Stomach Qi comes first. The human body treasures internal Grain Essence. By adding Shenqu (Medicated Leaven) and Huangqin (Scutellaria Root) to Buzhong Yiqi Tang (Midway-Boosting Qi-Supplementing Decoction), it becomes Yiwei Shengyang Tang (Stomach-Nourishing Yang-Raising Decoction), used to treat metrorrhagia in women caused by Qi sinking downward.

Wu Shuqing stated: Shengyang Chushi Tang (Yang-Raising Dampness-Removing Decoction) treats women with leukorrhea mixed with foul blood or sudden severe metrorrhagia. When Earth (Spleen) sinks, Dampness arises, leading to lethargy and a desire to lie down. When Wood (Liver) is depressed, Heat arises, leading to a sensation of Qi rushing upward. A slow pulse indicates slight Dampness; a wiry pulse indicates Wood. Depression without expansion generates Heat, which is Heart Fire invading the Spleen. A surging and large pulse indicates Fire in the Lower Jiao. The Bao Luo (Uterine Collaterals) houses Ministerial Fire and resides in the Mingmen (Gate of Life); it is a vessel abundant in Blood. Pathology stems from Fire. Heart Fire governs Spirit through its virtue of containment, while Ministerial Fire obeys Heart Fire. The Sanjiao (Triple Burner) governs Qi, and Bao Luo governs Blood. Therefore, Fire in the Blood level specifically governs Bao Luo, while Fire in the Qi level specifically governs the Sanjiao. When depressed, Fire cannot follow its nature to flare upward and is forced into the Blood level, injuring the Yin collaterals. The formula uses Cangzhu (Atractylodes Lancea Rhizome) and Shengma (Cimicifuga Rhizome) to disperse Dampness in the Taiyang and Yangming channels; Chaihu (Bupleurum Root) and Fangfeng (Saposhnikovia Root) to unblock the Jueyin and Shaoyang channels; Qianghuo (Notopterygium Rhizome) and Gaoben (Ligusticum Sinense Rhizome) to raise depression in the lower parts of the Shaoyin and Taiyang channels, which is the method of "raising what has sunk." However, ascending and dispersing substances, if overused, consume Qi and damage Metal (Lungs). Therefore, Huangqi (Astragalus Root) is used to protect the Lungs, and Danggui (Angelica Sinensis Root) guides Blood, ensuring both return to their proper places. Gancao (Licorice Root) harmonizes Qi, and Manjingzi (Vernonia Seed) cools Blood. These four agents constitute the method of restraining excessive harm.