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The *Zhubing Yuanhou Lun* (Treatise on the Pathogenesis and Symptoms of All Diseases) states: The evil blood in a newborn is swallowed into the abdomen, causing distension and fullness in the heart and abdomen. The infant cannot suckle milk; this condition is called "Nanru" (Difficulty Suckling).

It also states: While in the womb, if the mother consumes cold foods, cold qi enters the uterus. After birth, the infant suffers from abdominal pain and refuses to suckle; this is also named "Nanru" (Difficulty Suckling).

The *Qianjin Fang* (Essential Prescriptions Worth a Thousand Gold) records: Stir-fry deer horn until it becomes powder. Take an amount the size of a small bean, place it under the tongue, and allow the infant to swallow it naturally.

Another prescription: Use four sparrow droppings. Administer before they touch the nipple. For older infants, use ten droppings.

The *Luyuan Fang* (Verified Records Prescription) records a formula for treating wind in infants, characterized by a sensation of cold in the mouth for dozens of days and inability to suckle:
Take fresh bamboo juice and administer it orally; the condition will heal immediately. This refers to Zhu Li (Bamboo Sap), obtained by heating green bamboo stalks.

The *Boji Anzhong Fang* (Prescriptions for Universal Relief and Safety) records a formula for treating infant regurgitation:
Renshen (Radix Ginseng, 2 liang), Jupi (Pericarpium Citri Reticulatae, 1 liang), Shengjiang (Rhizoma Zingiberis Recens, 1 liang).
Decoct in 1.5 sheng of water until 0.8 sheng remains. Administer slowly in small doses.

The *Qianjin Fang* records: Apply ash powder from burnt honeycomb (Fengfang, Honeycomb) topically.

Another prescription: Burn the bands from the bottom of a steamer basket to ash, mix with ointment, and apply topically.

Another prescription: Use grease from the axle of a large cart, burn it to ash, and apply once daily.

The *Qianjin Fang* records: Burn Xueren Zi (Fructus Xanthii, Cocklebur fruit) and grind into powder.

Another prescription: Burn Fengfang (Honeycomb) to ash and mix into ointment. The *Xiaoyan Fang* (Effective Prescriptions) records:
Gancao (Radix Glycyrrhizae, 2 fen), Jiao (Fructus Zanthoxyli, Sichuan Pepper, 1 fen).
Sieve the mixture and apply as powder topically.

Another prescription: Fan Shi (Alumen, Alum) and Fuzi (Radix Aconiti Lateralis Preparata, Prepared Lateral Root of Aconite), each 2 fen. Sieve and sprinkle into the umbilicus, twice daily.

The *Qianjin Fang* records: Xingren (Semen Pruni Armeniacae, Apricot Kernel, 2 fen) and Zhu Jiache Zhong Sui (Medulla from the mandible of a pig, 2 fen).
For these two ingredients, first grind the apricot kernels into a paste-like consistency, then apply topically.

The *Zhubing Yuanhou Lun* states: Infant omphalitis (Umbilical Ulcer) occurs because after cutting the cord and bathing at birth, the area was not dried immediately. Dampness remains in the umbilicus, where it combats with wind-damp pathogenic factors.

The *Bencao* (Materia Medica) states: Apply the white fuzz found between mugwort stems; healing occurs immediately.

The *Luyuan Fang* records: Apply Jianghuang Bai Bo San (Powder of Curcuma and Phellodendron) topically.

The *Chan Jing* (Obstetrics Classic) states: Huangbai (Cortex Phellodendri, Phellodendron Bark) and Fu Xia Mo (Ink from the bottom of a cauldron), each 4 fen. Grind into fine powder and apply topically.

The *Qianjin Fang* records a formula for treating wind invading the infant's umbilicus, turning into a malignant ulcer that persists for years without healing:
Apply soil from the eastern wall; this is highly effective.

Another prescription: Apply ash powder from burnt honeycomb topically.

The *Ge Shi Fang* (Ge's Prescriptions) records a formula for treating wind invading the infant's umbilicus and chronic omphalitis that does not heal:
Burn the steamer basket bands to ash, mix with breast milk, and apply topically.

Another prescription: Grind Danggui (Radix Angelicae Sinensis, Chinese Angelica) into powder and apply topically.