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Fangji (Stephaniae Tetrandrae Radix) 1 liang, Gancao (Glycyrrhizae Radix et Rhizoma) ban liang, Baizhu (Atractylodis Macrocephalae Rhizoma) 7 qian half, Huangqi (Astragali Membranacei Radix) (remove the radicle) 1 liang 1 fen.
The above herbs are crushed to the size of hemp seeds. Each time, take 5 qian bi (a measure), add 4 slices of Shengjiang (Zingiberis Rhizoma Recens), 1 date (Jujubae Fructus), and 1.5 cups of water. Decoct until 0.8 cup remains, remove the dregs, and take warm. It is effective; take again after a long interval.
For wheezing, add Mahuang (Ephedrae Herba) ban liang. For disharmony in the stomach, add Shaoyao (Paeoniae Radix Alba) 3 fen. For qi rushing upward, add Guizhi (Cinnamomi Ramulus) 3 fen. For chronic cold below, add Xixin (Asari Radix) 3 fen.
After taking the medicine, one should feel as if insects are crawling in the skin, and the lower waist will feel like ice. Afterwards, sit on a quilt, and wrap another quilt around the lower waist to keep it warm until a slight sweat appears, which indicates recovery.

When Wind-Dampness mutually combats, causing pain throughout the whole body, the method dictates that sweating should resolve it. If it happens during continuous rainy weather, and the physician says this can be treated by inducing sweat, but the disease does not heal after sweating, why is this? Generally, if sweat is profuse, only the Wind pathogen leaves, while Dampness remains; therefore, it does not heal. When treating Wind-Dampness, inducing sweat should result only in a slight, continuous perspiration ("as if about to sweat"), so that both Wind and Dampness are expelled.

[Annotation]
When Wind-Dampness mutually combats, causing pain throughout the whole body, the method dictates resolution through sweating, but sweating must not exceed appropriate limits. During times of excessive rain and dampness, if sweating causes profuse perspiration, it will not cure the disease because the Wind pathogen leaves while Dampness remains. However, when treating Wind-Dampness, one must wait for clear and sunny weather to induce sweating, resulting in only a slight, continuous perspiration. Then both Wind and Dampness are expelled, and the disease heals.

[Collected Annotations]
Xu Bin said: This passage states that Wind-Dampness should be resolved through sweating, but it must not be excessive. It explains that pain from Wind-Dampness combat originally requires sweating. During cloudy and rainy weather, dampness is even heavier, so sweating is undoubtedly indicated. Why does it not heal? The nature of Wind is rapid and can be driven out suddenly; the nature of Dampness is stagnant and must be resolved gradually. Profuse sweating is too sudden; Wind leaves but Dampness does not, hence no healing. If sweating is mild, the expulsion is slow; being slow allows both Wind and Dampness to be expelled. Since Dampness in the human body is sticky and hard to remove, sudden sweating is inadvisable, let alone sudden purgation. Thus, the previous chapter stated that purgation leads to death, whereas here it only says "does not heal," indicating improper usage rather than a mistake comparable to erroneous purgation.

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After eight or nine days of Shanghan (Cold Damage), with Wind-Dampness mutually combating, causing painful and vexatious body sensations, inability to turn over independently, without vomiting or thirst, and with a floating, deficient, and choppy pulse, Guizhi Fuzi Tang (Cinnamon Twig and Aconite Decoction) is the primary treatment. If the stool is hard and urination is spontaneous, remove Guizhi and add Baizhu Tang (Atractylodes Macrocephala Decoction without Cinnamon Twig) as the primary treatment.

[Annotation]
This continues from the previous clause to detail the pulse and symptoms, clarifying the treatment. It states that although this Wind-Dampness disease occurs after eight or nine days of Shanghan, the absence of vomiting and thirst indicates no interior Shanghan syndrome. The floating, deficient, and choppy pulse indicates no exterior Shanghan pulse pattern. A floating and deficient pulse signifies exterior deficiency and Wind pathogen; a choppy pulse signifies Dampness. Vexatious body pain signifies Wind; inability to turn over signifies Dampness. This is body pain from Wind-Dampness combat, distinct from the joint pain of Shanghan. Guizhi Fuzi Tang is administered to warm and disperse Wind-Dampness, resolving it from the exterior. If the pulse is floating and excess, then Mahuang Jia Zhu Tang (Ephedra plus Atractylodes Decoction) should be used to vigorously expel Wind-Dampness. Even if the patient has these symptoms, with hard stool [blank] and spontaneous urination, purgation is not considered because it is not an interior [blank] of evil heat, but rather a [blank] of Wind dryness and departing Dampness. Therefore, Guizhi Fuzi Tang remains the choice. Guizhi is removed because hard stool and spontaneous urination suggest avoiding further sweating to prevent depletion of fluids. Baizhu is added because body heaviness [blank] indicates Dampness in the muscle layer; it assists Fuzi in driving fluid qi from the skin.

[Collected Annotations]
Cheng Lin said: Excess Wind causes vexatious body pain; excess Dampness causes difficulty in turning the body. When Wind-Dampness combats between Ying and Wei, without affecting the interior, there is no vomiting or thirst. A floating pulse indicates Wind, a choppy pulse indicates Dampness; since the pulse is near deficient, Guizhi Fuzi Tang is used to warm the meridians and disperse Wind-Dampness. When urination is free, stool must be [blank]; Guizhi acts to release the muscle layer, fearing profuse sweat, so it is removed; Baizhu removes muscle dampness and does not harm the interior, so it is added. Any sensations after taking the formula, such as feeling like insects crawling, drunkenness, or dizziness, occur due to the impending action of the medicinal potency.

Zhou Yangjun said: By the eighth or ninth day of Shanghan, it has been quite long. If it neither transmits to other meridians nor enters the fu organs, it is because Wind-Dampness persists. The external symptom of vexatious pain is Wind; the inability to turn over is Dampness; the absence of vomiting and thirst indicates no interior syndrome. The floating, deficient, and choppy pulse corresponds exactly. Thus, we know the Wind-Dampness pathogen resides in the muscles, not the sinews and joints, so Guizhi is used to release the exterior. The absence of fever indicates inherent deficiency of Yang Qi, so Fuzi is used to drive out Dampness. The two combine, and the pathogen cannot remain.