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[General Principle] Zhang Zhongjing stated: When a patient suffers from pain throughout the entire body, fever, and exacerbation during the Shen hour (approximately 3-5 PM), this condition is named Wind-Dampness. This disease arises from sweating while exposed to wind, or from long-term exposure to cold.

[Commentary] Liu Wansu stated: Pain throughout the body indicates Dampness; fever that worsens during the Shen hour indicates Wind. If contracted through sweating while exposed to wind, there was pre-existing Dampness followed by Wind invasion. If contracted through long-term exposure to cold, Wind was injured first, followed by Dampness. Ma Xing Yi Gan Tang (Apricot Kernel, Ephedra, Coix Seed, and Licorice Decoction) may be administered.

Tao Hua stated: In Wind-Dampness, the pulse must be Floating. This indicates injury to Dampness first, then Wind. Symptoms include swelling and pain in the limbs, inability to turn over, slight sweating on the forehead, aversion to cold with reluctance to remove clothing, difficult defecation, free urination, and worsening heat during the Shen hour. The treatment method should only slightly release the muscle layer; Qiang Huo Chong He Tang (Notopterygium Decoction for Harmonization) is appropriate. If accompanied by throat thirst and difficult urination, Wu Ling San (Five-Ingredient Powder with Poria) is used. If there is no external heat, internal thirst, and free urination, Shu Fu Tang (Atractylodes and Aconite Decoction) is used. For symptoms of lethargy, coma, abdominal fullness, heaviness of the body, spontaneous sweating, aphonia, and incontinence of stool, Bai Tong Tang (White Conjunction Decoction) with Gancao (Licorice Root) removed and Baizhu (Atractylodes Macrocephala Rhizome) added is indicated. For body swelling/pain, slight wheezing, and aversion to wind, Xing Ren Tang (Apricot Kernel Decoction) is used. For heat with irritability and thirst, Xiao Chai Hu Tang (Minor Bupleurum Decoction) with Huang Jing Hua (Polygonatum Flower/Trichosanthes Root) is used. For Dampness injury causing difficult urination, whole-body pain, jaundice, and smooth defecation, Yin Chen Wu Ling San (Artemisia Capillaris Five-Ingredient Powder with Poria) is used. If both urination and defecation are free and there is no jaundice, Shu Fu Tang (Atractylodes and Aconite Decoction) is used. For body pain with nasal congestion, Xiao Jian Zhong Tang (Minor Construct the Middle Decoction) with Huang Qin (Scutellaria Root) added is used.

[General Principle] Zhang Zhongjing stated: After eight or nine days of Cold Damage, when Wind and Dampness intermingle, causing severe body pain and inability to turn over independently, without vomiting or thirst, and with a Floating, Deficient, and Choppy pulse, Gui Zhi Fu Zi Tang (Cinnamon Twig and Aconite Decoction) is the primary treatment.

[Commentary] Yu Tun stated: This disperses Wind and Dampness from the exterior. If the stool is hard and urination is free, Gui Zhi Qu Gui Jia Bai Zhu Tang (Cinnamon Twig Decoction with Cinnamon Removed and Atractylodes Added) should be used. The subtlety of this clause lies in the Floating, Deficient, and Choppy pulse. If the pulse is Deep, Excess, Slippery, Large, or Rapid, it does not fit this pattern.

[General Principle] Zhang Zhongjing stated: When Wind and Dampness intermingle, causing vexing pain in the bones and joints, pulling pain, inability to flex or extend, and intensified pain upon touch, accompanied by sweating, shortness of breath, difficult urination, aversion to wind, reluctance to remove clothing, or slight bodily edema, Gan Cao Fu Zi Tang (Licorice and Aconite Decoction) is the primary treatment.

When Wind and Dampness intermingle, causing pain throughout the body, the law dictates resolution through sweating. If it encounters continuous rainy weather, and the physician says sweating can induce relief, but the disease persists after sweating, why is this? The answer is: If sweating causes profuse perspiration, only the Wind pathogen leaves, while Dampness remains; therefore, the disease does not resolve. When treating Wind-Dampness, inducing sweat should result only in a slight, continuous moisture on the skin; only then will both Wind and Dampness depart together.

[Commentary] Zhang Jianshan stated: Wind is on the exterior and Dampness is on the interior; this is the intermingling of Wind and Dampness. Profuse sweating implies violent Qi; violence causes the external Wind pathogen to leave while the internal Dampness pathogen fails to exit. Thus, Wind departs while Dampness remains.

[General Principle] Zhang Zhongjing stated: Patients suffering from Dampness diseases may exhibit sweating only on the head, stiffness in the back, and a desire to cover themselves with blankets or sit near fire. If purgatives are applied too early, hiccups, chest fullness, and difficult urination will occur. The tongue may appear coated due to Heat in the Lower Dan Tian and Cold in the Chest. The patient may feel thirsty and desire water but be unable to drink, resulting in dry mouth and vexation.

[Commentary] Zhang Yuanyu stated: When Dampness prevails, there is much sweating; in Cold Damage, there is necessarily no sweating. Therefore, when Cold and Dampness intermingle, although there is sweating, it cannot circulate throughout the body, resulting in sweating only on the head.