Discussion states: The root of the disease "Rou Ji" (Extreme Muscle Disorder) lies in the Spleen organ being invaded by Wind pathogen. The Spleen governs the muscles; when Wind pathogen strikes the Spleen, it causes extreme pathological changes in the muscles, leading to disease. What is called "Rou Ji" refers to a condition causing emaciation and lack of luster, where food intake fails to nourish the flesh and skin. However, Rou Ji can be classified into Extreme Deficiency and Extreme Excess, as well as Extreme Heat and Extreme Cold. All these arise from the Spleen contracting Wind pathogen. If Yin dynamics activate, it injures with Cold, resulting in a Deficiency syndrome characterized by heavy body, lethargy, reluctance to lift the limbs, anorexia, coughing after eating, pain under the right hypochondrium radiating faintly to the shoulder and back upon coughing, and inability to move or turn. This condition is named Li Feng (Severe Wind). If Yang dynamics activate, it injures with Heat, resulting in an Excess syndrome characterized by a sensation on the body like mice running, ulceration of lips and mouth, alteration of skin color, depletion of body fluids, opening of Cou Li (pores), and profuse sweating. This condition is named E Feng (Aversion to Wind). The treatment principle is to drain for Excess and tonify for Deficiency, treating while the condition is mild. If the condition becomes severe such that the skin becomes blocked, preventing external release, leading to the exhaustion of Taiyin Qi and necrosis of the muscle first, it is incurable.

To treat Rou Ji with Cold-Deficiency, presenting with Spleen cough, pain under the right hypochondrium radiating faintly to the shoulder and back, immobility, coughing upon movement, Spleen distension, retained fluid and phlegm masses, difficulty in urination and defecation, severe lower abdominal pain, and cold above the diaphragm, use Ban Xia Tang (Pinellia Decoction).
Herbs: Ban Xia (Pinelliae Rhizoma, washed with decoction to remove slipperiness, dried, 3 liang), Bai Zhu (Atractylodis Macrocephalae Rhizoma), Chi Fu Ling (Poria cum Rhus, black peel removed), Ren Shen (Ginseng Radix et Rhizoma), Zhi Gan Cao (Prepared Glycyrrhizae Radix et Rhizoma), Fu Zi (Prepared Aconiti Lateralis Radix, cracked, peel removed).
The above eight herbs are coarsely crushed and sifted. Each dose uses 5 qian bi, added with 1.5 zhan of water and 0.5 fen of crushed Sheng Jiang (Zingiberis Rhizoma Recens), decocted until 1 zhan remains. Strain and take warm in two doses.

To treat Rou Ji with blocked skin, Exterior Excess and Interior Deficiency, inability to release externally, and pain in waist and legs, use Du Huo San (Angelicae Pubescentis Powder).
Herbs: Du Huo (Angelicae Pubescentis Radix, 2 liang), Dang Gui (Angelicae Sinensis Radix, 1.5 liang), Bai Fu Ling (Poria, 1.5 liang, peel removed), Gan Jiang (Zingiberis Rhizoma, 1 liang, cracked and crushed), Ren Shen (Ginseng Radix et Rhizoma, 1 liang, radix tip removed), Zhi Gan Cao (Prepared Glycyrrhizae Radix et Rhizoma, 0.5 liang).
The above twelve herbs are crushed and sifted into powder. Each dose is 4 qian bi, added with 1 zhan of water and 0.5 he of soybeans, decocted until 0.5 fen remains. Strain and take warm after meals.

To treat Rou Ji with altered muscle color, stiff tongue, retraction of genitals, and weak pain in waist and legs, use Fang Feng San (Saposhnikoviae Powder).
Herbs: Fang Feng (Saposhnikoviae Radix, 1.5 liang, radix tip removed), Du Huo (Angelicae Pubescentis Radix, 1.5 liang), Bai Fu Ling (Poria, 1.5 liang), Ren Shen (Ginseng Radix et Rhizoma, 1 liang, radix tip removed), Gan Jiang (Zingiberis Rhizoma, 1 liang, cracked and crushed), Fu Zi (Prepared Aconiti Lateralis Radix, 0.5 liang, cracked, peel and umbilicus removed), Wu Jia Pi (Cortex Acanthopanacis, 1 liang), Zhi Gan Cao (Prepared Glycyrrhizae Radix et Rhizoma, 1 liang, slightly reddened and crushed), Dang Gui (Angelicae Sinensis Radix, 1 liang).
The above eleven herbs are crushed and sifted into powder. Each dose is 4 qian bi, added with half a zhan of water and half a zhan of wine, decocted until 0.6 fen remains. Strain and take warm before meals.

To treat Rou Ji with Cold-Deficiency, presenting with lethargic limbs, cough radiating to costal regions, hardness and fullness/pain below the heart, anorexia, cold extremities, and excessive worry/contemplation, use Ren Shen Wan (Ginseng Pill).
Herbs: Ren Shen (Ginseng Radix et Rhizoma, 1 liang 1 fen), Fu Zi (Prepared Aconiti Lateralis Radix, cracked, peel and umbilicus removed, 3 fen), Gan Jiang (Zingiberis Rhizoma, processed, 3 fen), Yuan Zhi (Polygalae Radix, heart removed, 0.5 liang), Shu Jiao (Zanthoxyli Pericarpium, eyes and leaves removed, 0.5 liang).

To treat Rou Ji with Excess-Heat, presenting with My Bi (Muscle Bi) with sensations like mice running on the body, depletion of fluids, open Cou Li, and profuse sweating, identified as Pi Feng (Spleen Wind), where Wind pathogen lodges in skin altering flesh color, turning the nose yellow. It is suitable to stop sweating and resolve Wind-Bi, using Ma Huang Tang (Ephedra Decoction).
Herbs: Ma Huang (Ephedrae Herba, roots and joints removed), Zhi Shi (Immature Bitter Orange Fruit, pulp and bran removed, stir-fried), Fang Feng (Saposhnikoviae Radix), Bai Zhu (Atractylodis Macrocephalae Rhizoma), Xi Xin (Asari Radix et Rhizoma, seedlings and leaves removed, 1 liang), Shi Gao (Gypsum Fibrosum, crushed, 4 liang), Fu Zi (Prepared Aconiti Lateralis Radix, cracked, peel and umbilicus removed).
The above nine herbs are crushed like hemp seeds. Each dose is 5 qian bi, added with 1.5 zhan of water and 1 fen of crushed Sheng Jiang (Zingiberis Rhizoma Recens), decocted until 1 zhan remains. Strain and take warm on an empty stomach, then again at midnight before sleep.

To treat Rou Ji with Excess-Heat, presenting with depletion of fluids, open Cou Li, profuse sweating, and weakness in the Lower Jiao, use Yue Bi Tang (Leaping Spider Decoction).
Herbs: Ma Huang (Ephedrae Herba, roots and joints removed, 3 fen), Shi Gao (Gypsum Fibrosum, crushed, 3 liang), Zhi Gan Cao (Prepared Glycyrrhizae Radix et Rhizoma, 1 liang), Fu Zi (Prepared Aconiti Lateralis Radix, cracked, peel and umbilicus removed, 1 liang).
The above four herbs are crushed like hemp seeds. Each dose is 5 qian bi, added with 1.5 zhan of water, 0.5 fen of crushed Sheng Jiang (Zingiberis Rhizoma Recens), and two broken Da Zao (Jujubae Fructus), decocted until 1 zhan remains. Strain and take warm on an empty stomach and at midnight before sleep.

To treat Rou Ji with Excess-Heat, presenting with sensations like mice running on the body, or Wind-Bi causing lip/mouth ulceration and altered skin color, use Shi Nan San (Forsythia Leaf Powder).
Herbs: Shi Nan (Foliium Nandinae, 1 liang), Shan Yu (Dioscoreae Rhizoma, 2 liang), Tian Xiong (Aconiti Kusnezoffii Radix, cracked, peel and umbilicus removed), Tao Hua (Persicae Flos), Ju Hua (Chrysanthemi Flos), Zhi Gan Cao (Prepared Glycyrrhizae Radix et Rhizoma, 0.5 liang each), Huang Qin (Scutellariae Radix, 1 liang), Rui Ren (Buckthorn Seed, 1 liang).
The above twelve herbs are pounded and sieved into powder. Each dose is 2 qian bi, taken warm with wine on an empty stomach, then again at night before sleep.

To treat Rou Ji with Excess-Heat, presenting with skin sensations like mice running, fluid leakage and sweating, or Bi numbness and impotence, acute pain in limbs, use Xi Zhou Xu Ming Tang (Xizhou Life-Prolonging Decoction).
Herbs: Ma Huang (Ephedrae Herba, roots and joints removed, 1.5 liang), Dang Gui (Angelicae Sinensis Radix, cut and dried), Shi Gao (Gypsum Fibrosum, crushed, 1 liang each), Xiong Qiong (Ligustici Chuanxiong Rhizoma, 0.5 liang), Gui Zhi (Cinnamomi Ramulus, coarse bark removed), Zhi Gan Cao (Prepared Glycyrrhizae Radix et Rhizoma), Xing Ren (Prunus Armeniaca Semen, double-kernel, 15 grains ground).
The above ten herbs, excluding Xing Ren, are coarsely crushed and mixed evenly. Each dose is 5 qian bi, added with 1.5 zhan of water and 1 fen of crushed Sheng Jiang (Zingiberis Rhizoma Recens), decocted until 1 zhan remains. Strain and take warm on an empty stomach, then again in the evening.

To treat Rou Ji with Emaciation due to Cold pathogen invasion, presenting with heavy body, lethargy, inability to lift limbs, joint pain, reduced diet, and restlessness in sitting or lying, use Gou Qi Tang (Lycium Decoction).
Herbs: Gou Qi (Lycii Fructus), Huang Qi (Astragali Radix, crushed and stir-fried), Fu Zi (Prepared Aconiti Lateralis Radix, cracked, peel and umbilicus removed, 2 liang each), Xiong Qiong (Ligustici Chuanxiong Rhizoma), Ren Shen (Ginseng Radix et Rhizoma), Shao Yao (Paeoniae Radix), Fu Shen (Poria with Pine Root, wood removed), Zhi Gan Cao (Prepared Glycyrrhizae Radix et Rhizoma, 1.5 liang).
The above twelve herbs are crushed like hemp seeds. Each dose is 5 qian bi, added with 1.5 zhan of water and five slices of Sheng Jiang (Zingiberis Rhizoma Recens), decocted until 0.8 fen remains. Strain and take warm.