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The back belongs to Yang, and the abdomen belongs to Yin. The Shu points (Acupoints where the Qi of the Zang organs is transported) of the five Zang organs are all located on the back. If the wet nurse fails to care for the infant properly, exposing the child's bare back to the wind, the back will be struck by exogenous Wind pathogens (Ke Feng). If this pathogenic factor is not resolved and dispersed in time, Cold Qi will enter the bone Shu, causing the back to protrude high like a turtle shell; hence it is called "Turtle Back" (Gui Bei). Alternatively, if the infant's bones are tender and soft, sitting them up too early can also cause kyphosis (stooping). Early treatment is necessary to prevent the formation of chronic, incurable diseases.

Shufeng Yin (Dispersing Wind Decoction)
Ephedrae Herba (Mahuang, 麻黄) (stir-fried with wine), Cinnamomi Ramulus (Guizhi, 桂枝), Armeniacae Semen Amarum (Xingren, 杏仁), Glycyrrhizae Radix et Rhizoma (Gancao, 甘草), Rhei Radix et Rhizoma (Dahuang, 大黄), Angelicae Pubescentis Radix (Duohuo, 独活), Saposhnikoviae Radix (Fangfeng, 防风), Pine Flower (Songhua, 松花), Aurantii Fructus Immaturus (Zhike, 枳壳).
Decoct with three slices of Zingiberis Rhizoma Recens (Shengjiang, 生姜) in water. Adjust according to the four seasons.

Moxibustion: Feishu (BL13). Located 0.5 cun lateral to the lower border of the spinous process of the second thoracic vertebra. Moxa cone: 5 moxa cones.

The feet and knees are the sites where the meridians of the Three Yin channels run and converge. This area has abundant Qi but scarce Blood. When invaded by Cold Qi, the Qi and Blood knot and fail to disperse. The condition initially presents with alternating chills and fever. Due to failure to disperse the pathogen, Cold Qi lodges within the knee bones, causing pain day and night, which is lighter in the morning and heavier at night. The muscles of the upper and lower legs waste away, while the knees become coarse and swollen, resembling the knee of a crane; thus it is named accordingly. It is also called "Crane Knee Wind" (He Xi Feng) or "Drumstick Wind" (Gu Chui Feng); the pathology is the same, but the names differ. One must absolutely avoid using cold-natured topical applications, nor should one arbitrarily use knives or needles. Misuse of these methods often leads to untreatable conditions, which is truly pitiable. Those who survive may suffer lifelong disability. Topical applications should be warm in nature, and internal medications should also be warming. Once the Cold Qi dissipates, the swelling will subside naturally.

Wuji San (Five Accumulations Powder) (See formula in the chapter on Middle Jiao Cold): Add Fuzi (Prepared Aconite Root), Chaenomelis Fructus, and Achyranthis Bidentatae Radix for significant efficacy.
Yulong Gao (Jade Dragon Ointment), Chonghe Gao (Harmonizing Ointment) (Both formulas appear in surgical texts and are effective for cold-damp toxicity).

Duhuo Jisheng Tang (Angelica Pubescens and Taxillus Decoction): Treats Kidney injury by Cold Qi, flowing into the waist and knees, causing swelling and unbearable pain in the feet and knees, as well as spasms and contractures of the hands and feet preventing flexion and extension. It is also effective for cold bi-syndrome in both men and women.
Ingredients: Danggui (Angelica Sinensis Radix), Chuanxiong (Ligusticum Chuanxiong Rhizome), Duohuo (Angelicae Pubescentis Radix), Sangjisheng (Taxilli Caulis et Folium), Duzhong (Eucommiae Cortex), Niuxi (Achyranthis Bidentatae Radix), Xixin (Asari Radix et Rhizoma, small dose), Renshen (Ginseng Radix), Fuling (Poria), Qinjiao (Gentianae Macrophyllae Radix), Guigui (Cinnamomi Cortex, small dose), Baishao (Paeoniae Radix Alba), Shudi (Rehmanniae Radix Preparata), Gancao (Glycyrrhizae Radix et Rhizoma, small dose), Fangfeng (Saposhnikoviae Radix) (equal parts).
Decoct with three slices of Zingiberis Rhizoma Recens (Shengjiang, 生姜) in water. Take hot.

Jiawei Xiangsu San (Modified Fragrant Perilla Powder): Treats Hong Kong Foot (Beriberi/Jiaogong), Crane Knee Wind, with miraculous efficacy for both men and women.
Ingredients: Zisu (Perillae Folium), Chenpi (Citri Reticulatae Pericarpium), Xiangfu (Cyperi Rhizoma), Baizhi (Angelicae Dahuricae Radix), Chuanxiong (Ligusticum Chuanxiong Rhizome), Jinyinhua (Lonicerae Japonicae Flos), Chishaoyao (Paeoniae Radix Rubra) (each 1 qian), Muxiang (Aucklandiae Radix), Gancao (Glycyrrhizae Radix et Rhizoma) (each 5 qian), Mugua (Chaenomelis Fructus) (1.2 qian).
Decoct with three slices of Zingiberis Rhizoma Recens (Shengjiang, 生姜) in water.

Renshen Baidu San (Ginseng Detoxification Powder): Add Mantispae Ala (Chantui, 蝉蜕), Cangzhu (Atractylodis Rhizoma), Danggui (Angelicae Sinensis Radix). If constipated, add Dahuang (Rhei Radix et Rhizoma).

Shenshou San (Divine Grant Powder): Treats Crane Knee Wind and Hong Kong Foot in men and women with miraculous effect.
Ingredients: Mubiezi (Strychni Semen) (remove shell, slice two pieces, stir-fry with bran, crush, stir-fry again, grind fine, wrap in paper, press to remove oil), Nong Guigui (Thick Cinnamon Bark) (remove bark).
Equal parts, grind together into powder. Based on age/size, mix with hot wine and take orally. Sweating indicates cure.

Bawei Dihuang Wan (Eight-Ingredient Pill of Rehmannia): Treats chronic Crane Knee Wind that does not heal; use internally to resolve the accumulation.
Ingredients: Shanzhuyu (Corni Fructus), Shudi (Rehmanniae Radix Preparata), Shanyao (Dioscoreae Rhizoma), Zexie (Alismatis Rhizoma), Fuling (Poria), Mudanpi (Moutan Cortex) (each 1 liang), Fuzi (Prepared Aconite Root), Guigui (Cinnamon Bark) (each 3 qian).
Grind into powder, make pills with refined honey, size of hemp seeds. Take 100 pills per dose, washed down with salt water.

Soaking Wine Formula: Indications same as above, effective for men and women.
Ingredients: Huai Shudi (Huai Rehmanniae Radix Preparata), Huai Shengdi (Huai Rehmanniae Radix), Danggui (Angelicae Sinensis Radix), Tiandong (Asparagi Radix) (remove skin and heart), Maidong (Ophiopogonis Radix) (each 2 liang), Chuan Niuxi (Achyranthis Bidentatae Radix), Duzhong (Eucommiae Cortex) (each 1.5 liang), Heshouwu (Polygoni Multiflori Radix) (2 liang).
Soak in 20 jin of wine. After seven days, drink several cups frequently. After finishing this batch, add another 10 jin of wine. Taking this wine concurrently with Dihuang Wan yields better results.

Single Prescription: Kansui Radix (Gansui, 甘遂) ground into powder, applied topically to the swollen area; internally decocted with Gancao (Licorice Root) to dissipate the swelling.

Xingwu San (Arisaema and Aconite Powder): This formula disperses Cold, extracts toxicity, relieves pain, and relaxes sinews.
Ingredients: Tian Nanxing (Arisaematis Rhizoma) (1 liang), Banxia (Pinelliae Rhizoma), Jiangjiang (Zingiberis Rhizoma Recens) (5 qian), Chuanwu (Aconiti Radix) (3 qian).
Grind into powder. Decoct Congbai (Allii Fistulosi Bulbus) thickly, mix with honey for topical application. Frequently moisten the area with Congjiu (Scallion Wine).

Single Prescription: Congbai (Scallion Bulb) baked until cooked, mashed, mixed with Baimi (White Honey), Jiangzhi (Ginger Juice), and Feiluo Mian (Fine Flour), then applied.

Another Method: Qiaomai Mian (Buckwheat Flour) mixed with Jiupi (Wine Lees) to make cakes, steamed and applied hot to the affected area. Change several times consecutively for good effect.

Another Method: Rendongcao (Lonicerae Japonicae Flos/Jinyinhua, 忍冬草) and Sangzhi (Mori Ramulus) decocted in water for frequent hot washing. Also effective.

Hamei Gao (Eyebrow Painting Paste): For weaning infants, wait until the child is asleep, mix with Sesame Oil, and apply to both eyebrows. Effective immediately. If ineffective, use the following:
Zhizi (Gardeniae Fructus) (three fruits, burned to retain character), Zhensha (Cinnabar), Cihuang (Realgar), Qingfen (Calomel) (small amounts of each, ground into powder).