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The method of cutting the umbilical cord has been detailed in *Dasheng Bian*. However, if the umbilical cord is cut too short, or not retracted tightly, or if bathing the infant causes traction on the umbilical cord, allowing Ke Feng (external pathogenic wind) to enter through the deficiency, all can lead to this condition. There are five types of symptoms: infants who frequently cry indicate Heart disease; those with slight twitching of hands and feet indicate Liver disease; those with cyanotic and pale lips, contraction, and phlegm-saliva obstruction indicate Spleen disease; those with tight jaw indicate Kidney disease; and those who cry incessantly indicate Lung disease. If only one or two of the Five Zang organ symptoms are present, it is still treatable; if all are present, it is untreatable.

Internal causes stem from congenital endowment inherited from parents; the disease manifests between the sixth and seventh days after birth and is difficult to treat. External causes involve pathogens affecting the Six Fu organs; the disease manifests between the second and fifth days after birth and is treatable. Observe whether the infant sneezes occasionally, cries more than usual, and has a loose mouth when suckling; these are signs that Umbilical Wind is about to manifest, requiring immediate treatment. The treatment methods and full-body moxibustion/lamp-fire therapies are detailed in *Youyou Jicheng*.

The first type is called Umbilical Wind: After cutting the umbilical cord, invasion by water-dampness, wind, and cold enters the navel and flows into the Heart and Spleen, causing chest and abdominal distension, loose mouth during suckling, frequent crying without feeding. At this initial stage, observe a hidden green vein rising on the infant's navel, extending to the abdomen, sometimes bifurcating upwards towards the heart region. If this vein reaches the heart region, only two or three out of ten may survive. One must act early, before the vein reaches the heart region. Frequently apply moxibustion using an oil-soaked rush light at the head of this green vein three times. If bifurcated, apply three times at each branch. It will immediately retract by about one cun. Then apply moxibustion three times at the new tip of the retracted vein, and three times on the navel itself. When the vein disappears, the illness heals; repeated moxibustion has proven effective.

The second type is called Lockjaw (Jinkou): Symptoms include closed eyes and jaw, gradually diminishing cry, flesh on the tongue resembling millet grains, inability to suckle, foaming at the mouth, and urinary retention. Upon encountering this, first check for red spots on the upper area or white spots near the gum line. Immediately puncture them with a needle or scrape them with fingernails until pus and blood emerge. Prepare a decoction of Mint (*Bohe*), grind Peking ink (*Jingmo*) into it, stir well with a finger, then use hair from the mother's head dipped in the mixture to smear inside the mouth. Alternatively, use blue cloth soaked in warm water to gently open the mouth, which yields immediate results. If unresolved, decoct Perilla (*Zisu*), Peucedanum (*Qianhu*), and Silkworm (*Jiangcan*), each 8 fen, in water. Once warm, wrap a finger in silk, dip it in the medicine, and wipe the infant's mouth. Also, drip the medicine into the mouth using cotton, repeating frequently until the mouth opens. Do not feed immediately after opening the mouth. Carefully check the navel for green veins; if present, burn them urgently as described above. Another prescription: Take two whole raw scallions, mash them to extract juice. Use three straight silkworms (*Jiangcan*), remove heads, stir-fry to remove silk threads, and grind into fine powder. Mix with scallion juice and apply to the nipple for the infant to suckle, or administer directly into the mouth. Another prescription for Umbilical Wind and Lockjaw: Burn Mugwort leaves (*Aiye*) to ash, fill the navel with it, and bind securely. If the umbilical cord has already fallen off, slice garlic thinly, apply to the navel, and moxibustion with mugwort ash. When the scent of mugwort is detected in the mouth, recovery is immediate. Another prescription: Decoct one sour plum (*Wumei*) and administer the liquid. For Lockjaw Umbilical Wind presenting with yellowish complexion, wheezing, inability to vocalize, cyanotic lips, stiff tongue, and clenched jaws: Take two straight silkworms (*Jiangcan*), remove heads, lightly stir-fry, grind into fine powder, mix with honey, and place in the infant's mouth. For infants within ten days showing lockjaw and refusal to suckle: Take one large spider, remove legs, roast until charred, grind into powder, mix with a small cup of pig milk, divide into three doses, and slowly administer; this is extremely effective. Another prescription: Decoct one qian of Raw Licorice Root (*Sheng Gancao*) until concentrated. Dip a cotton ball in it for the infant to suckle. After phlegm-saliva is expelled, instill pig milk into the mouth for cure.

The third type is called Locked Belly (Suodu): Caused by excessive heat-toxin in the abdomen accumulating at the anus, resulting in constipation. Urgently have a woman suckle seven points on the infant: anterior chest, posterior back, below the navel, and both palms and soles. Repeat four or five times. If still obstructed, take a medium-sized scallion white segment about 3-4 cun long, lubricate with sesame oil, gently insert into the rectum (Gu Dao) to a depth of about 2 cun, leave for a moment, then remove. Re-insert scallion white dipped in sesame oil until bowel movement is achieved.

The above treatments are recorded from *Jiyan Jianbian Fang*; further details are found in *Youyou Jicheng*.