此谓小儿经诸大病，或惊痫，或伤寒，或温壮，而服药或吐痢、发汗；病瘥之后，血气
尚虚，脾胃犹弱，不能传化谷气，以荣身体，故气力虚而羸也。
嗽者，由风寒伤于肺也。肺主气，候皮毛，而俞在于背。小儿解脱，风寒伤皮毛，故因
从肺俞入伤肺，肺感微寒，即嗽也。故小儿生，须常暖背，夏月亦须用单背裆。若背冷得
嗽，月内不可治，百日内嗽者，十中一两瘥耳。
咳逆，由乳哺无度，因挟风冷伤于肺故也。肺主气，为五脏上盖，在胸间。小儿啼，气
未定，因而饮乳，乳与气相逆，气则引乳射于肺，故咳而气逆，谓之咳逆也。冷乳、冷哺伤
于肺，搏于肺气，亦令咳逆也。
肺主气，肺气有余，即喘咳上气。若又为风冷所加，即气聚于肺，令肺胀，即胸满气急
小儿肿满，由将养不调，肾脾二脏俱虚也。肾主水，其气下通于阴；脾主土，候肌肉而
克水。肾虚不能传其水液，脾虚不能克制于水，故水气流溢于皮肤，故令肿满。其挟水肿者
，即皮薄如熟李之状也；若皮肤受风，风搏于气致肿者，但虚肿如吹，此风气肿也。
这是指小儿在经历各种大病，如惊痫、伤寒或温壮（高热）之后，经过服药催吐、泻下或发汗治疗；病愈之后，气血仍然虚弱，脾胃功能依然薄弱，无法运化水谷精微以滋养身体，因此导致气力不足而形体消瘦。
咳嗽，是由于风寒邪气损伤肺脏所致。肺主司一身之气，外合皮毛，其背俞穴位于背部。小儿衣着单薄受寒，风寒邪气侵袭皮毛，便顺着肺俞穴进入体内损伤肺脏，肺感受轻微寒邪，就会引发咳嗽。所以小儿出生后，必须经常保暖背部，即使在夏季也需要使用单层的护背衣物。如果因背部受冷引起咳嗽，出生一个月内的婴儿难以治愈，百日内的婴儿咳嗽，十人中仅有一两人能痊愈。
咳逆（咳嗽伴气机上逆），是因为哺乳没有节制，加之挟带风冷邪气损伤肺脏所致。肺主司一身之气，是五脏中最上方的脏器，位于胸中。小儿啼哭时，气息尚未平定，此时立即喂奶，乳汁与逆乱之气相互冲撞，气机牵引乳汁射入肺中，从而导致咳嗽且气机上逆，这被称为咳逆。此外，饮用冷乳或进食冷食损伤肺脏，寒气搏结于肺气之中，也会导致咳逆。
肺主司一身之气，若肺气有余，就会出现喘息、咳嗽和气机上逆的症状。如果再受到风冷邪气的侵袭，气便会聚积于肺中，导致肺胀，表现为胸部满闷、呼吸急促。
小儿浮肿胀满，是由于调养不当，导致肾、脾两脏均出现虚损所致。肾主水液代谢，其气向下通达于阴部；脾属土，主管肌肉并能制约水湿。肾虚则不能正常输布水液，脾虚则不能有效克制水湿，因此水气流溢于皮肤之间，导致身体浮肿胀满。其中夹杂水肿的，皮肤薄得像熟透的李子一样；如果是皮肤受风邪侵袭，风邪与气机搏结导致肿胀的，只是虚肿如同吹起的气囊，这属于风气引起的肿胀。
毒肿，是风热湿邪搏结于皮肤，使血气运行涩滞不通，蕴积而成毒邪，表现为肿胀、色红且发热。
小儿患耳聋，是风邪侵入头脑所致。手太阳小肠经进入耳内。头脑中有风邪，风邪随气机进入并乘袭经脉，与正气相搏结，风邪停积不散，就会导致耳聋。
This refers to the condition where, after a child has suffered from various severe illnesses such as *Jingxian* (convulsions and epilepsy), *Shanghan* (cold damage), or *Wenzhuang* (high fever), and has undergone treatments involving emesis, purgation, or sweating; following the resolution of the illness, the *Xueqi* (blood and qi) remain deficient, and the Spleen and Stomach functions are still weak. Consequently, they cannot transform and transport grain qi to nourish the body, leading to weakness in energy and emaciation.
Cough arises from Wind-Cold pathogenic factors injuring the Lung. The Lung governs Qi and corresponds to the skin and hair, with its Back-Shu point located on the back. When a child is inadequately clothed and exposed to cold, Wind-Cold invades the skin and hair, then enters through the Lung Back-Shu point to injure the Lung. Upon contracting slight Cold, the Lung triggers a cough. Therefore, after birth, a child's back must be kept warm constantly; even in summer, a single-layer back protector should be used. If cough results from cold exposure to the back, it is difficult to treat in infants within one month of age; for those within 100 days, only one or two out of ten may recover.
Ke Ni (cough with rebellious Qi) occurs due to unregulated breastfeeding combined with Wind-Cold injuring the Lung. The Lung governs Qi and serves as the canopy above the five Zang organs, situated in the chest. When an infant cries, their Qi is unsettled; if feeding occurs immediately, the milk and the rebellious Qi clash. The Qi draws the milk into the Lung, causing cough and rebellious Qi, termed Ke Ni. Additionally, consuming cold milk or food injures the Lung, where Cold stagnates and combats Lung Qi, also resulting in Ke Ni.
The Lung governs Qi; excess Lung Qi manifests as panting, cough, and upward rebellion of Qi. If further aggravated by Wind-Cold, Qi accumulates in the Lung, causing Lung distension, characterized by chest fullness and shortness of breath.
Pediatric edema and distension result from improper care leading to deficiency in both the Kidney and Spleen. The Kidney governs Water, with its Qi flowing downward to the yin regions; the Spleen belongs to Earth, governs muscles, and controls Water. Kidney deficiency fails to transport water fluids, while Spleen deficiency fails to control Water, causing water fluids to overflow into the skin, resulting in edema and distension. In cases complicated by water swelling, the skin appears thin like a ripe plum. If wind invades the skin and combats Qi causing swelling, the result is merely flaccid swelling resembling an inflated bag, known as Wind-Qi edema.
Du Zhong (toxic swelling) occurs when Wind-Heat-Dampness combats in the skin, causing blood and Qi to flow sluggishly and stagnate, accumulating into toxic pathogens. This presents as swelling that is red and hot.
Pediatric deafness is caused by Wind entering the head. The Hand-Taiyang channel enters the ear. When Wind resides in the head, Wind pathogens follow Qi to invade the meridians, combating with Zheng Qi. The accumulation and stagnation of Wind pathogens lead to deafness.