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According to *Zhu Bing Yuan Hou Lun* (General Treatise on the Pathogenesis and Symptoms of All Diseases) regarding the condition of umbilical sores in infants: Umbilical sores occur because, after the umbilical cord is cut at birth, it is not dried immediately after bathing. Moisture remains in the umbilicus, and when the wrapping is loosened, wind pathogens invade. The combination of wind and dampness causes the umbilical sore to fail to heal for a long time. If the umbilical sore does not heal, wind qi enters and damages the meridians and collaterals, transforming into epilepsy (Xian Zheng).

*Ge Shi Zhou Hou Bei Ji Fang* (Emergency Prescriptions Kept up the Sleeve) provides a formula for treating wind umbilicus and umbilical sores that have failed to heal for a long time.
Take dry toads, burn them to ash, and apply externally. Three to four times daily is optimal. (*Qian Jin Yi Fang* notes that this formula is also used when there is exudate from the umbilicus; see the method for swaddling the umbilicus.)

*Bei Ji Qian Jin Yao Fang* (Essential Prescriptions Worth a Thousand Gold for Emergencies) provides a formula for treating sores growing in the umbilicus of infants.
Apply mulberry sap to the nipple, allowing the infant to suckle and drink it.

*Bei Ji Qian Jin Yao Fang*, another prescription
Allow the infant to drink goat milk and blood.

*Bei Ji Qian Jin Yao Fang* provides a formula for treating wind umbilicus in infants, which progresses to malignant sores, fails to heal for years, and has continuous exudation.
Burn Xanthii Fructus (Cang Er Zi) and grind it into powder.

*Bei Ji Qian Jin Yao Fang*, another prescription
Grind dry larvae of scarab beetles (Qi Lao) into fine powder and apply externally. Healing can be expected within three or four applications.

*Bei Ji Qian Jin Yao Fang* provides a formula for treating poor healing of the umbilicus in infants.
Burn the grease from the axle of a large cart into ash and apply twice daily.

*Bei Ji Qian Jin Yao Fang* provides a formula for treating sores growing in the umbilicus of infants.
Burn the cloth straps used for steamers into ash, mix with ointment base, and apply externally.

*Zi Mi Mi Lu* (Secret Records of Mother and Child) provides a formula for treating umbilical sores in infants that fail to close.
Apply powder of Phellodendri Cortex (Huang Bo) topically.

*Tai Ping Sheng Hui Fang* (Holy惠民 Formulas of the Taiping Era) provides a formula for treating umbilical sores in infants that fail to heal for a long time.
Dry Toad (1 fen, burned to ash), Alum (Bai Fan, 1 fen, burned to ash).
Grind the above ingredients together until fine and apply to the umbilicus.

*Tai Ping Sheng Hui Fang*, another prescription
Coptidis Rhizoma (Huang Lian, powdered), Lead Carbonate (Hu Fen, half tael each).
Grind the above ingredients together until fine and apply to the umbilicus.

*Tai Ping Sheng Hui Fang*, another prescription
Dry Portulaca Oleracea (Ma Chi Xian) until dry, grind into powder, and apply externally.

*Tai Ping Sheng Hui Fang*, another prescription
Burn Ochra (Long Gu), grind finely into powder, and apply externally.

*Tai Ping Sheng Hui Fang*, another prescription
Stir-fry Fermented Soybean Paste (Xiang Chi) until yellow and scorched, crush, sieve into powder, and apply externally.

*Tai Ping Sheng Hui Fang*, another prescription
Grind Caulis Longan (Fu Long Gan / Hearth Soil) finely and apply externally.

Zhang Huan: For infants whose umbilical sores fail to heal, if wind pathogens transmit to the meridians and collaterals and transform into epilepsy, one should urgently use the Golden Yellow Powder formula.
Coptidis Rhizoma (Chuan Huang Lian, 1 fen, ground separately into powder), Lead Carbonate (Hu Fen, ground separately), Ochra (Long Gu, burned to ash and ground separately. Each 5 qian).
Grind the above ingredients together again into a fine powder. Apply a small amount to the umbilicus frequently.