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[Shizhi (Leech)]
Indications: Drives out evil blood and stasis, breaks up masses and accumulations, promotes urination, and induces abortion. Indicated for amenorrhea in women progressing toward blood deficiency consumption, as well as pain from blood retention due to traumatic injuries.

"Internal Injury Divine Effect Formula": Shizhi (Hirudo nipponica) and Muxiang (Musk), each 1 liang. Cut into pieces, burn until smoke emerges, grind into powder. Take 1 qian with wine. Treats pain from blood retention due to falls and blows.

Another prescription: Hongzhi (Red leech) stir-fried with calcined stone until yellow, 0.5 liang; Dahuang (Rhubarb Root) and Qianniu toumo (Pharbitis Seed head powder), each 2 liang. Grind into powder. Take 2 qian per dose, mixed with hot wine. Treats traumatic injuries where blood stasis stagnates causing abdominal distension and pain, and severe constipation or urinary retention causing extreme distress.

[Chantui (Cicada Slough)]
Indications: Disperses wind-heat of the upper jiao, treats cephalalgia and vertigo due to wind, blurred vision and corneal opacity, throat wind, throat obstruction, diphtheria, pediatric convulsions with high fever, tetanus, carbuncles and toxic sores, adult aphonia, and difficult labor in women.

[Chanhua (Cicada Flower)] (A type of cicada)
Indications: Pediatric opisthotonos and convulsions. Its efficacy for night crying and palpitations is similar to that of Chantui.

[Chanke San (Cicada Slough Powder)]: Chantui (remove legs and wings), Digupi (Lycium Bark), Huanglian (Coptis Rhizome), Danpi (Moutan Cortex), Baizhu (Atractylodes Macrocephala Rhizome), Cangzhu (Atractylodes Rhizome soaked in rice water, sliced, and dried), Juhua (Chrysanthemum Flower), each 1 liang; Longdancao (Gentiana Root), 5 qian; Tianguazi (Melon Seed), 5 he. Grind into powder. Take 1 qian per dose, mixed with Jingjie decoction. Administer after meals and before bedtime. Treats eye diseases and corneal opacity, and residual toxins from epidemic febrile diseases attacking the eyes.

Another prescription: Chantui (lightly stir-fried), Banxia (Pinellia Tuber), Fangji (Stephania Root), Gancao (Licorice Root, honey-fried), each 1 fen; Jiegeng (Platycodon Root), Chenpi (Citrus Reticulata Peel), each 5 qian. Grind into powder. Take 1 zi per dose (increase to 5 fen for children over three years old), mixed with ginger decoction. Treats pediatric phlegm obstruction and coughing with wheezing sounds.

[Chanke Tang (Cicada Slough Decoction)]: Chantui (lightly stir-fried), Wuweizi (Schisandra Berry washed seven times in water and dried), Renshen (Ginseng Root), each 1 liang; Chenpi (Citrus Reticulata Peel), Zhigancao (Licorice Root, honey-fried), each 5 qian. Grind into powder. Take 5 fen per dose, mixed with ginger decoction. Treats impaired lung qi movement.

Another prescription: Chantui 5 qian. Use the decoction to wash the affected area, applying warmth repeatedly. Internally administer Wuling San (Five-Ingredient Powder with Poria) plus Dengxincao (Juncus Effusus). Treats pediatric scrotal swelling caused by toxicity from earthworms or ants while sitting on the ground.

[Chantui Gouteng Yin (Cicada Slough and Uncaria Decoction)]: Chantui 1 liang; Gouteng (Uncaria Ramulus with Hook), Tianma (Gastrodia Rhizome), Fuling (Poria), Chuanxiong (Sichuan Lovage Rhizome), Baishao (White Peony Root), each 3 qian; Gancao (Licorice Root) 1 liang. Add Dengxincao (Juncus Effusus), decoct in water, and take orally. Treats abdominal pain and crying due to fright.

[Chantui Wan (Cicada Slough Pill)]: Chantui, Muzei (Equisetum Hiemale), Ganju (Chrysanthemum Morifolium Flower), each 1 liang; Jingjiesui (Perilla Leaf with Flower Spike), Chuanxiong, each 2 liang; Cangzhu (soaked in rice water and dried) 3 liang; Zhigancao (Licorice Root, honey-fried) 5 qian. Grind into powder, mix with honey to form cakes the size of ancient coins. Chew one cake slowly after meals, swallow with wax tea. Three times daily. Treats cold tears due to wind in the eyes, and also removes corneal opacity and halos.

[Chanxie San (Cicada and Scorpion Powder)]: Chantui 21 units; Quanxie (Whole Scorpion) 7 units; Tiannanxing (Arisaema Rhizome) 1 unit; Gancao (Licorice Root) 1.5 li. Grind into powder. Take 2 qian per dose, decoct with Shengjiang (Fresh Ginger) and Dazao (Jujube) in water. Treats slow convulsions.

[Chanhua San (Cicada Flower Powder)]: Chanhua, Baijiangcan (Bombyx Batryticatus, stir-fried with wine until hot), Zhigancao (Licorice Root, honey-fried), each 1 fen; Yanhusuo (Corydalis Rhizome) 0.5 li. Grind into powder. For a one-year-old infant, take 1 zi per dose; for four-to-five-year-olds, take 5 fen. Mix with Chanke Tang (Cicada Slough Decoction). Treats convulsions with night crying, teeth grinding, coughing, and throat obstruction with pain.

Another prescription: Chantui (baked), Qingdai (Indigo Naturalis), each 5 qian; Shutui (Snake Slough, burned to retain its properties) 1 liang; Xixin (Asarum Root) 2.5 qian. Grind into powder. Take 3 qian per dose, mixed with warm wine. Twice daily. Treats various injuries from dog bites and insect stings, or ulcerating sores, summer maggot infestations, and pediatric smallpox lesions with maggot infestation.

[Chanhua Wubi San (Cicada Flower Peerless Powder)]: Chantui (remove head, legs, and wings) 2 liang; Shutui (fried with butter) 1 liang; Qianghuo (Notopterygium Rhizome), Danggui (Angelica Sinensis Root), Shijueming (Haliotidis Shell boiled in salt water for one fu time, drained, and powdered), Chuanxiong, each 3 liang; Fangfeng (Saposhnikovia Root), Fuling (Poria), Zhigancao (Licorice Root, honey-fried), each 4 liang; Chishao (Red Peony Root) 13 liang; Jili (Tribulus Fruit, stir-fried) 8 liang; Cangzhu (soaked in child's urine, sliced, and stir-fried with sesame oil) 15 liang. Grind into powder. Take 3 qian per dose, mixed with clear tea after meals. Treats all types of wind-eye and qi-eye conditions, dim vision, gradual formation of corneal opacity, lateral and frontal cephalalgia, and various ocular manifestations of pediatric smallpox.