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*Waitai Mi Yao* (Essential Prescriptions Worth a Thousand Gold) records Liu's method for treating infants with unstable breastfeeding. If, from three to seven days after birth, the infant develops high fever, red complexion, and yellow discharge in the nostrils, there is fear of it developing into *Cuokou* (Mouth Grasping). If worms resembling snails or yellow-headed white-shell clams are seen in the infant's jaw, use the following prescription:
Take half a *he* (unit of volume) of bamboo sap obtained by burning bamboo, add a small amount of *Niuhuang* (Calculus Bovis), and administer to the infant; the illness will immediately resolve.

Another prescription from Liu in *Waitai*:
Take a small amount of pork meat to wipe the mouth; this will draw out the worms or cause them to disappear naturally, and the illness will resolve.

(Attached: Wind-Invading Jin)
*Bingyuan Huohua Jing* (Master on Causes and Manifestations of Diseases) discusses the syndrome of *Jin* (Lockjaw) in infants: When an infant is first born, sudden aggregations appear in the mouth, growing on the tongue like millet grains, causing the infant to be unable to suckle milk. This is named *Jin*. This occurs because heat pathogens entered the fetus's viscera during gestation, causing the Heart Qi to be biased towards heat.

*Taiping Shenghui Fang* (Comprehensive Essential Formulas from the Imperial Library of Taiping Era) states that all newborns must be guarded against three diseases: one is *Cuokou*, two is *Zhuojin*, and three is *Qifeng* (Umbilical Wind). These are all acute and critical conditions. Among them, *Cuokou* and *Zhuojin* are particularly severe, and the danger passes only after one month. If the infant has a red face, panting urgency, and cannot cry, the signs of *Cuokou* are already heavy. Even skilled healers can save less than four or five out of ten. If the jaw is tight, breastfeeding is unstable, crying becomes weaker, and saliva is frothed from the mouth, this is *Zhuojin*. Ordinary people see that urination and defecation are normal and think it is caused by cold or heat, not knowing that the disease lies between the throat and tongue; according to the symptoms, it is extremely critical, and even skilled healers can save less than three or four out of ten. However, if proper nursing care is followed and prevention is done beforehand, such disasters will certainly be avoided.

*Taiping Shenghui Fang* also says: Infantile lockjaw at birth is caused by heat pathogens entering the infant's Heart and Spleen during gestation. Because the Heart and Spleen are biased towards heat, lockjaw results.

*Qianjin Fang* (Prescriptions Worth a Thousand Gold) treats *Jin*: Red complexion indicates Heart *Jin*; white complexion indicates Lung *Jin*. The prescription is:
Take *Jishibai* (White excrement of chickens) the size of a jujube pit, wrap it in cotton, boil in one *he* of water for two boils, and divide into two doses for administration. (*Taiping Shenghui Fang* uses the same method for treating oral lockjaw: three pills the size of beans, administered with water.)

*Qianjin Fang* treats infantile oral lockjaw:
*Lujiao Fen* (Deer Antler Powder), *Dadou Mo* (Soybean Powder)
Mix equal parts of these two ingredients with milk, apply, and feed to the infant.

Another prescription from *Qianjin Fang*:
Take two *sheng* of donkey milk and two *sheng* of pig milk, combine and decoct until reduced to one *sheng* and five *he*. Administer amounts the size of an almond, three or four doses, and the illness will resolve.

*Qianjin Fang* treats infantile oral lockjaw where the infant cannot suckle:
Take four pieces of sparrow feces, powder them, and apply to the nipple for the infant to suckle. For older infants, increase to ten pieces.

*Waitai Mi Yao* treats newborns with oral lockjaw who cannot suckle:
Take half a red-footed centipede, remove the feet, roast until scorched, powder it, and sieve through silk. Mix with two *he* of pig milk. Divide into three or four doses for administration, and the illness will resolve. (*Taiping Shenghui Fang* and *Bencao Tujing* are the same.)

Cui Shi in *Waitai Mi Yao* treats infants with lockjaw and body heat:
Take two *he* of warm bamboo sap, divide into four or five doses for administration. (*Bingbu Shouji* and *Taiping Shenghui Fang* are the same.)

*Waitai Mi Yao* cites *Gujin Luyan* to treat infantile lockjaw where the pathology is in the throat like a hemp seed, causing foaming and inability to feed:
Take mercury the size of a millet grain and administer. Regardless of when the illness started, once the mercury is swallowed, the illness heals. Adjust the dose by judgment, not exceeding the size of a small sesame seed. (*Taiping Shenghui Fang* is the same.)

*Shiliao Bencao* (Food Therapy Materia Medica) treats infantile oral lockjaw:
Grind *She Mei* (Duchesnea indica fruit) to extract juice, and instill into the mouth. It can revive even if death has occurred. (*She Mei* grows in damp places, has three leaves at the stem tip, yellow flowers, and red fruits resembling raspberries.)

*Jianyao Jizhong Fang* (Concise Formulas for Saving Lives) treats infantile oral lockjaw:
Take two evening silkworm moths, roast until yellow, powder them, mix with honey, and apply to the inside of the infant's lips.

*Taiping Shenghui Fang* treats infantile lockjaw:
Scrape off the white moss/tartar from eaves, take the bird-feeder pot and insects found within, grind finely, mix with milk juice, filter through cotton, instill into the mouth, and apply to both cheeks, gums, palate, and upper/lower surfaces of the tongue.

Another prescription from *Taiping Shenghui Fang*:
Extract juice from fresh black donkey manure, apply to the mouth; swallowing is harmless.

Another prescription from *Taiping Shenghui Fang*:
Take one tael of Chuanjiao (Sichuan Pepper), wrap in dough to form a triangle, roast until yellow and cooked, cover the infant's mouth with cotton, scoop out a hole the size of a chopstick tip, allowing the pepper aroma to enter the mouth for immediate effect. If no effect is felt, make two or three such items, using one corner occasionally to intensify the medicinal power.

Another prescription from *Taiping Shenghui Fang*:
Observe if there are white spots on the infant's palate; urgently scrape them off with fingernails, then burn *Hufen* (Lead White), smoke with paper candles, and the illness will resolve.

*Taiping Shenghui Fang* treats newborns with oral lockjaw where the tongue cannot suckle milk:
Spider (one piece, remove feet and mouth, roast until scorched, powder finely), Pig Milk (one *he*).
Mix the above powder with pig milk, divide into three doses. Slowly instill; the effect is miraculous.

Another prescription from *Taiping Shenghui Fang*:
Take grass from the cow's mouth, squeeze to obtain juice, apply to the affected area, and the illness will resolve.

Another prescription from *Taiping Shenghui Fang*:
Apply white cattle urine to the mouth, and the illness will resolve.

Another prescription from *Taiping Shenghui Fang*:
Take saliva from the mouth of an east-facing cow, apply to the infant's mouth and forehead for immediate effect.

Another prescription from *Taiping Shenghui Fang*:
Burn kudzu vines to ash, powder finely, mix with a "yi zi" (small measure) amount of milk juice, instill into the mouth, and the illness will resolve.

Zhang Huan's *Lisheng San* (Establishing Sage Powder) for treating infantile oral lockjaw:
Dry Scorpion Tail (seven pieces, powder), Nifen (Calomel, powder, one qian), Dry Spider (one piece, remove mouth and feet, first roast new bamboo over fire to obtain bamboo oil [bamboo sap] the size of a clam shell; soak spider overnight, roast until scorched, take powder).
Grind all ingredients together until extremely fine. Each dose is "yi zi". Mix with milk juice and drip into the mouth frequently.

*Wanquan Fang* (Myriad Complete Formulas) treats infantile lockjaw:
Whenever an infant finishes breastfeeding, wrap hair around a finger, dip in clear water, and wipe. If two yellow veins are seen at the gum roots, cut them with a reed knife, apply pig milk, and the illness will resolve. If the infant's mouth is hard to open, first apply pig milk to open it.

*Miyao Zhimi* (Secret Essentials Pointing to the Mystery) treats infants within one month of birth who have tight jaws, cannot drink milk, and suffer from lockjaw:
First warm a wooden comb in the bosom, then press under the earlobe tip seven times, and the illness will settle.

*Zhang Family Collection* treats neonatal oral lockjaw:
Centipede (whole, one piece), Scorpion Tail (seven pieces), Pengsha (Borax), Zhusha (Cinnabar, each three zhu), Meihuanao (Borneol), Shexiang (Musk, each one zhu).
Grind all ingredients in a mortar. For infant lockjaw, mix with mother's saliva, apply around the lips and behind the jaw; the infant stirring the medicine with the tongue brings peace. For any acute convulsions, mix "yi zi" with ginger-honey water and administer.

Appendix: Wind-Invading Lockjaw Prescription
Mr. Mao: Within one hundred and twenty days after birth, infants may suffer from wind-invading lockjaw. Symptoms include lockjaw with eyes open, weakening cry, difficulty feeding, and vomiting white foam. This condition arises because the fetus contracted the disease before full term, originally due to maternal illness during pregnancy leading to toxic qi transmission. After birth, blood and qi are unregulated, and wind pathogens strike, causing such symptoms. Treatment involves first administering *Duoming San* (Life-Saving Powder) to purge and expel wind-phlegm (formula see section on Acute and Chronic Convulsions); then administer *Xingpi San* (Spleen-Awakening Powder, two formulas exist: one see Stomach Qi Disharmony section, one see Slow Spleen Wind section) combined with *Yunqi San* (Qi-Balancing Powder, formula see Stomach Qi Disharmony section).
Also administer *Xiongzhu San* (Male Cinnabar Powder, formula see Convulsions and Epilepsy section) combined with *Zhusha Gao* (Cinnabar Paste, formula see Convulsions and Accumulation section) for regular administration until cured. If hands are clenched and mouth locked shut, it is a sign of death.