四证者，惊风痰热是也。八候者，搐搦掣颤。反引窜视是也。搐者两手伸缩，搦者
十指开合，掣者势如相扑，颤者头偏不正，反者身仰向后，引者臂若开弓，窜者目直似怒，
视者睛露不活。四证已备，八候生焉。四证既无，八候安有专是业者，可不究心及此。脉
病证治，明有条类。大抵婴孩得疾，如火燎原，扑之在微，不致有延蔓之盛。疗病亦然。
若初觉是受惊伤风发热，便与疏解，何患有传变之误。所谓闾门之盗，不可以固留，逆
流之水，不可以顺决，此有疾在谨初之意也。
衡州万户张侯寓屯田日，长子三岁，六月得患不语，手足蜷缩，已经二旬，命余至
彼，诸医议论不一，观外形面垢有热，气促流涎，口眼 斜，不省人事，次则手足俱冷
而蜷缩，身臂反张，诊六脉沉，按而取，独心肝脉虚而细数，余脉缓弱。余曰∶面垢色
脉细数，此因中暑感风，前贤所谓暑风者是也。手足冷缩而不伸，或服凉剂太过，寒之
使然。若手足温，其效自速。愚以治法分阴阳顺乎气，五苓散加宽气饮，姜汁沸汤调下
三服，其证稍慢，次疏风和荣卫，百解散加荆芥、人参、当归，水、姜煎投。随以温灰
汤浇洗手足，药一服，洗一次，至八九次，手足温则血活，血活则筋舒，筋舒则手足运动
如常，余热未除，消暑清心饮主之。声音不全，二圣散取效。调理惟用万安饮，恰九日
前证俱减。张侯曰∶此子更生，端藉药力，不敢妄也。因笔漫纪，后有是证，仿此活人亦方便心矣。
四证，指的是惊、风、痰、热这四种病症。八候，指的是搐、搦、掣、颤、反、引、窜、视这八种症状表现。所谓“搐”，是指双手一伸一缩；“搦”是指十指一张一合；“掣”是指肢体动作势态如同相扑搏斗；“颤”是指头部偏向一侧不能端正；“反”是指身体向后仰倒；“引”是指手臂伸展如同拉弓；“窜”是指两眼直视状似愤怒；“视”是指眼球外露且转动不灵活。如果四证已经具备，八候就会随之产生。如果四证都不存在，八候又从何谈起呢？专门从事儿科医疗的人，怎能不深入研究这方面的知识呢？脉象、病机、证候和治疗原则，都有明确的条理和分类。大致来说，婴幼儿患病，就像烈火燎原一样迅猛，必须在火势微弱时扑灭，才不会导致病情蔓延扩大。治疗疾病也是如此。如果在初起时察觉是受惊、伤风并伴有发热，就立即给予疏风解表的治疗，哪里还会有病情传变导致的误治呢？这就好比里巷中的盗贼，不能用强行固守的方法来留住（意指不能单纯靠堵截），逆流而上的水，不能顺着水流去决堤（意指不能顺其病势），这就是在疾病初期就要谨慎对待的意思。
衡州万户张侯在寓居屯田期间，他的长子三岁，六月间患上失语症，手足蜷缩，病程已二十天，于是请我前往诊治。各位医生议论纷纷，看法不一。观察患儿外形，面色晦暗且有热象，呼吸急促，流口水，口眼歪斜，神志不清，人事不知；接着发现手足俱冷且蜷缩，身体和手臂向后反张。诊察六部脉象，沉取时，唯独心脉和肝脉虚细而数，其余脉象缓弱。我说：“面色晦暗，脉象细数，这是因为中暑兼感风邪，也就是前贤所说的‘暑风’病。手足寒冷蜷缩而不能伸展，可能是因为之前服用寒凉药物太过，寒气所致。如果手足转温，疗效自然会迅速显现。”我采用将治疗方法分为阴阳，顺应气机运行的策略，先用五苓散（利水渗湿方剂）加入宽气饮（理气宽胸方剂），用姜汁和沸水调服三剂，病情稍有好转。接着采用疏风和调节营卫的方法，使用百解散（解表散邪方剂）加入荆芥、人参、当归，用水和生姜煎煮后服用。随后用温灰汤浇洗手足，每服药一次，就洗一次，经过八九次后，手足变暖则血液流通，血液流通则筋脉舒展，筋脉舒展则手足运动恢复正常。此时余热尚未清除，主用消暑清心饮（清热解暑方剂）。声音仍未完全恢复，用二圣散（祛痰开窍方剂）取得疗效。调理阶段只使用万安饮（调和脾胃方剂），恰好九天后之前的所有症状都减轻了。张侯说：“这个孩子得以重生，确实依靠药力，不敢有丝毫妄言。”因此随手记录此事，以后遇到此类病症，仿照此法救人也是方便慈悲之心了。
The "Four Syndromes" refer to Wind-Convulsion (Jing Feng), Phlegm, and Heat. The "Eight Signs" refer to Twitching (Chu), Grasping (Nuo), Jerking (Che), Trembling (Chan), Retroflexion (Fan), Drawing/Pulling (Yin), Gazing/Strabismus (Cuan), and Staring (Shi). "Twitching" refers to the extension and flexion of both hands; "Grasping" refers to the opening and closing of the ten fingers; "Jerking" refers to movements resembling wrestling; "Trembling" refers to the head tilting to one side and failing to remain upright; "Retroflexion" refers to the body arching backward; "Drawing" refers to the arms extending as if drawing a bow; "Gazing" refers to eyes staring straight ahead as if in anger; "Staring" refers to the eyeballs being exposed and lacking flexibility. When the Four Syndromes are fully present, the Eight Signs arise. If the Four Syndromes are absent, how can the Eight Signs exist? Practitioners specializing in pediatrics must not fail to study these matters carefully. Pulse patterns, diseases, syndromes, and treatments are clearly categorized. Generally speaking, when infants fall ill, it spreads like a prairie fire; it must be extinguished while still slight to prevent extensive propagation. Treating disease is no different. If at the initial stage one perceives an attack by Wind-Convulsion due to shock or wind-pathogen with fever, immediate dispersal and resolution should be applied; how could there be errors due to disease transmission? This is akin to saying that thieves in the alleys cannot be retained by mere fortification, nor can reverse-flowing water be directed by順决 (following the flow); this embodies the principle of caution at the onset of illness.
When Marquis Zhang of Hengzhou was stationed at Tuntian, his eldest son, aged three, fell ill in June with mutism and curled limbs, a condition persisting for twenty days. He summoned me to attend. Physicians debated differing opinions. Observing the exterior, the face was grimy with heat, breathing was rapid with salivation, there was facial paralysis (deviation of mouth and eyes), and unconsciousness. Subsequently, the limbs were cold and curled, and the body and arms exhibited retroflexion. Palpation of the six pulses revealed a deep quality; upon pressing, only the Heart and Liver pulses were deficient, fine, and rapid, while the remaining pulses were slow and weak. I stated: "A grimy complexion and fine, rapid pulse indicate Summerheat combined with Wind-pathogen, what the sages referred to as 'Summerheat-Wind' (Shu Feng). Cold, curled limbs unable to extend may result from excessive administration of cooling agents, causing cold to constrict. If the limbs become warm, efficacy will naturally accelerate." My treatment strategy divided Yin and Yang, aligning with Qi dynamics. Initially, Wuling San (Five-Ingredient Poria Decoction) was combined with Kuanqi Yin (Broad-Qi Infusion), administered with ginger juice and boiling water for three doses, after which symptoms slightly improved. Next, to disperse wind and harmonize Ying and Wei (Defensive and Nutritive levels), Baisan Jie (Hundred-Resolution Powder) was used with added Jingjie (Schizonepetae Herba), Renshen (Ginseng Radix et Rhizoma), and Danggui (Angelicae Sinensis Radix), decocted with water and ginger. Following this, the limbs were washed with warm ash-water after each dose; after eight or nine washes, the limbs warmed, blood circulation activated, sinews relaxed, and limb movement returned to normal. Residual heat remained, so Xiaoshu Qingxin Yin (Summerheat-Relieving Heart-Clearing Infusion) was prescribed. For incomplete voice recovery, Ersheng San (Two-Sage Powder) proved effective. For convalescence, Wan'an Yin (Ten-Thousand-Peace Infusion) was used exclusively. Within nine days, all prior symptoms subsided. Marquis Zhang said: "This child's revival is entirely due to medicinal power; I dare not speak lightly." Thus, I recorded this casually, hoping that future practitioners encountering such cases may find it convenient and compassionate to apply similar methods.