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Fenghuan (Flaccidity due to Wind) refers to a condition where wind pathogen penetrates deeply into the body, causing flaccidity and weakness of the hands and feet. Generally, the four limbs and hundred vessels of a person will become spasmodic and tight when encountering cold, and become soft and relaxed when encountering heat. When the disease is in the Yang aspect, the Qi of the meridians flows slowly, leading to laxity of the joints; when the disease is in the Yin aspect, the Qi of the meridians flows rapidly, leading to contraction of the joints. This is the normal law of nature. However, the Spleen governs the muscles and four limbs, and the Stomach is the sea of water and grain, responsible for distributing the Qi of water and grain to nourish the whole body. If the Spleen and Stomach are deficient, the limbs lose their nourishment. Consequently, wind pathogen attacks the deficiency, entering from the Couli (pores) into the muscles, and then from the muscles into the Spleen and Stomach. How can it not lead to flaccidity and disability? Some may say that wind-dispelling formulas differ from stomach-strengthening formulas, but this depends on how flexibly the practitioner applies them. I have heard that the strength of the human body relies on the sinews and bones; the Liver governs the sinews, and the Kidney governs the bones. If the Qi of the Liver and Kidney is deficient and wind pathogen invades, there will also be symptoms of limb flaccidity and weakness. In such cases, one should first disperse the wind and then tonify, paying special attention to this approach.

Paifeng Tang (Wind-Dispersing Decoction), Xuming Tang (Continuing Life Decoction) (formulas see Wind category): Add Zhi Banxia (Prepared Pinellia Rhizome), Binglang (Areca Seed, size of a chicken heart), increase Shengjiang (Fresh Ginger) for decoction. Use this first to disperse wind-toxin and evil qi. Suhexiang Wan (Styrax Pill): Soak in boiling water, mix with Jiangzhi (Ginger Juice), and swallow 20 pills of Zhenliao Baiwanzi (True Material White Pills), twice daily, treating flaccidity of hands and feet. Alternatively, alternate using Baiwanzi (White Pills) or Anshen Wan (Kidney-Calming Pill), taken before meals. (Formulas see Cough Section, Body Pain Section, Water-Drink Section.)
Buhuanjin Zhengqi San (Unchanging Metal Upright Qi Powder) (formula see Cold category): Add Chuanxiong (Szechwan Lovage Rhizome) and Guigui (Cinnamon Twig) for decoction, take Anshen Wan (Kidney-Calming Pill) before meals. Treats deficiency of Spleen, Stomach, Liver, and Kidney, with wind invading the sinews and bones of the four limbs, causing flaccidity, weakness, and numbness. It is still recommended to regularly consume Doulin Jiu (Black Bean Dripping Wine) in the morning.
Dasheng Yili Jin Dan (Great Sage One-Pill Golden Elixir): Treats stroke with sudden collapse, stiff tongue with salivation, paralysis and hemiplegia, stubborn itching and numbness, epilepsy with falling down, closed eyes with vocalization, stiff neck with opisthotonos, locked jaw with upward gaze.
Da Chuanwu (Large Aconiti Lateralis Radix Praeparata, processed) Da Fuzi (Large Aconiti Radix Praeparata, processed, skin and umbilicus removed) Xinluo Baifuzi (New Rohan Typhonii Rhizoma, processed. Each 2 liang) Chuan Wulingzhi (Szechwan Costus Root, from Sichuan) Bai Jiangcan (White Silkworm, stir-fried, silk mouth removed) Bai Jili (Tribuli Fructus, stir-fried, spines removed. Each 1 liang) Bai Fan (Alumen, calcined) Zhusha (Cinnabar) Moyao (Myrrha) Shexiang (Moschus, separately ground. Each 0.5 liang)
Grind all into fine powder, mix well. Use Banshui Mo (Half-liang Pine-soot Ink) ground in fresh water to knead into pills. Each liang of powder makes 6 pills. Coat with 200 pieces of Jinbo (Gold Foil) and let dry naturally.
Da Tie Dan Wan (Great Iron Pellet Pill): Treats stroke with paralysis, deviation of mouth and eyes, spasm and pain of sinews and bones, numbness of limbs.
Ziran Tong (Pyritum, heated red, quenched in vinegar seven times, 1.5 liang) Hu Jinggu (Tigris Tarsus, soaked in wine, stir-fried until yellow) Danggui (Angelicae Sinensis Radix, soaked in wine, dried) Baifuzi (Typhonii Rhizoma, processed) Chuanwu (Aconiti Lateralis Radix Praeparata, processed, skin and umbilicus removed) Wulingzhi (Inviser Serpentis Faeces, stir-fried) Mahuang (Ephedrae Herba, nodes removed. Each 1 liang) Moyao (Myrrha) Ruxiang (Olibanum) Quanxie (Scorpio, dried) Anshixiang (Styrax) Baizhi (Angelicae Dahuricae Radix) Zhi Jiangcan (White Silkworm, stir-fried, silk removed. Each 0.5 liang) Wushe Rou (Agkistrodon Flesh, soaked in wine, dried, 3 qian) Mubiezi (Momordicae Semen, 21 seeds, shell removed)
Grind all into powder. Boil Anshixiang (Styrax) in wine, add Feibaimian (Refined White Flour) to make a paste for pills, size of a pellet. Take one pill at a time, grinding with warm wine and swallowing.
Xiefu San (Scorpion and Aconite Powder): Treats deficiency of Liver and Kidney Qi, wind invading sinews and bones, flaccidity and weakness of hands and feet.
Xiao Fuzi (Small Aconiti Radix Praeparata, skin removed) Sheng Caowutou (Raw Aconiti Kusnezoffii Radix, processed, skin and umbilicus removed) Cangzhu (Atractylodis Rhizoma, stir-fried) Niuxi (Cyathulae Radix, soaked in wine, dried) Chuanxiong (Ligustici Chuanxiong Rhizoma) Danggui (Angelicae Sinensis Radix) Tianma (Gastrodiae Rhizoma)
Grind all into powder. Take 1 qian each time, mixed with Doulin Jiu (Black Bean Dripping Wine). Also use Hetao Rou (Walnut Kernel) ground and taken with wine, before meals.
Sijin Wan (Four-Jin Pill): Treats wind-cold-damp toxin combusting with Blood and Qi, causing flaccidity of sinews and bones, soreness, pain, itching, and bi-syndrome in the four limbs.
Xuan Mugua (Chaenomelis Fructus, pulp removed, sliced, dried) Tianma (Gastrodiae Rhizoma, chopped) Niuxi (Cyathulae Radix, chopped, dried) Congrong (Cynomorii Herba, washed, sliced, dried. These four ingredients each weigh 1 jin, soak in 5 sheng of good wine for three days.) Shu Fuzi (Prepared Aconiti Radix) Hugu (Tigris Os, fried with butter. Each 2 liang)
Grind all into powder. Use the wine used to soak the herbs to mix with flour paste for pills, size of Torreya Seeds. Take 30-40 pills each time, before meals, with warm wine or Doulin Jiu (Black Bean Dripping Wine).
Another prescription adds Danggui (Angelicae Sinensis Radix) 3 qian, Ruxiang (Olibanum), Moyao (Myrrha), Wulingzhi (Inviser Serpentis Faeces) each 0.5 liang, Shexiang (Moschus) 1 qian, named Dasijin Wan (Great Four-Jin Pill). Take with Mugua decoction; also treats Hongxiangjiao (Beriberi/Foot Rot).
Hugu Jiu (Tiger Bone Wine): Treats various winds causing flaccidity and weakness, and Lijie Feng (Joint Wind), with soreness and pain of bone joints.
Hu Jinggu (Tigris Tarsus, fried with butter until yellow)
Crush into rice-sized pieces. For every 1 sheng of bone, soak in 3 sheng of wine for five days. Take one cup on an empty stomach; if cold, warm it up.
Tiegu Dan (Iron Bone Elixir), Tie Dan Wan (Iron Pellet Pill) (formulas both see Wind category): Treats various winds causing flaccidity.
Other medications are detailed extensively in the Wind category.