雷真君曰∶古人云疫来无方，非言治疫之无方，乃言致疫之无方也。然亦未尝无方。疫来既有方，
而谓治之无方可乎。大约瘟疫之来，多因人事之相召，而天时之气运，适相感也。故气机相侵，而地气又
复相应，合天地之毒瓦斯，而瘟疫成焉。侵于一乡，则一乡之人病；酿于一城，则一城之人病；流于千里，
则千里之人病。甚且死亡相继，阖门阖境，无不皆然，深可痛也。此等病必须符水救之，然而符水终不
浪传于世，今别定一法，用管仲一枚，浸于水缸之内，加入白矾少许，人逐日饮之，则瘟疫之病不生
矣。真至神之法也。
张真人曰∶妙方。此先制瘟疫之法也。
天师曰∶儿科得其要，无难治人。今传一法门，使万世小儿尽登仁寿。法在先看气色，后看脉。
小儿有疾，某颜色必鲜艳，以鼻之上眼之中间，中正精明穴上辨之。色红者，心热也，红筋横直现于
山根，皆心热也。色紫者，心热之甚，而肺亦热也。色青者，肝有风也；青筋直现者，乃肝热也；青筋横
现者，亦肝热也；直者风上行，横者风下行也。色黑者，风甚而肾中有寒。色白者，肺中有痰。色黄
者，脾胃虚而作泻，黄筋现于山根，不论横直，总皆脾胃之症。止有此数色，无他颜色，故一览而知小
儿之病矣。大人看脉于寸关尺，小儿何独不然，但小儿不必看至数，止看其数与不数耳。数甚则热，不
数则寒也。数之中，浮者风也，沉者寒也，缓者湿也，涩者邪也，滑者痰也，如此而已。七表八里，
俱不必去看。自知吾诀，则《脉诀》亦不必读也。有止歇者，乃痛也，余亦不必再谈。小儿症，大约吐泻
厥逆、风寒暑热而已，其余痘疹喑，余无他病。或心疼腹痛，或有痞块，或有疮疔，可一览而知也。然
而，小儿之病，虚者十之九，实者十之一，故药宜补为先。今立三方，通治小儿诸症。第一方∶人参三
分，白术五分，茯苓一钱，甘草一分，陈皮二分，神曲三分，半夏一分，此六君子加减也，通治小儿脾胃
弱病，神效。如伤肉食者，加山楂五粒；伤米食者，加麦芽
五分；伤面食，加萝卜子三分；吐者，加白豆蔻一粒，去甘草，加生姜三片；泻者，加干姜
三分，猪苓五分。第二方治外感也。或伤风伤寒，或咳嗽，或发热，或不发热，或头痛，或鼻塞，或痰
多，或惊悸，或角弓反张，皆以此方通治之，无不神效。方用柴胡七分，甘草三分，桔梗五分，半夏
三分，黄芩三分，白芍二钱，白术二钱，当归五分，陈皮二分，茯苓五分，水煎服。头痛，加蔓荆子
三分；心痛手不可按者，乃实火也，加栀子一钱，按之不痛者，乃虚火也，加甘草八分，贯仲五分，
广木香三分，乳香一分；胁痛者，加芍药三钱；腹痛者，以手按之，手按而疼甚者，乃食也，加大
黄一钱；按之而不痛者，乃寒也，非食也，加肉桂三分，干姜三分；有汗出不止者，加桑叶一片；眼痛
而红肿者，乃火也，加黄连三分，白蒺藜一分；喉痛者，加山豆根三分。第三方∶治虚寒之症，夜热出
汗、夜啼不寐、怔忡、久嗽不已、行迟语迟、龟背狗肚、将成痨瘵等症，方用熟地三钱，山茱萸二
钱，麦冬二钱，北五味五分，元参二钱，白术二钱，茯苓一钱，薏仁三钱，丹皮一钱，沙参二钱，
地骨皮二钱，水煎服。倘兼有外感，少加柴胡五分，白芍三钱，白芥子一钱。余无可加减矣。
雷真君说：古人说瘟疫来临没有固定的规律，并不是说治疗瘟疫没有方法，而是说导致瘟疫的原因没有固定规律。然而，其实也是有规律的。既然瘟疫的来临有规律，怎么能说治疗它没有方法呢？大抵瘟疫的发生，多是因为人事活动相互感召，而天时的气运恰好与之感应。所以气机相互侵扰，地气又相应和，结合天地间的毒瓦斯，瘟疫便形成了。侵袭一个乡，那个乡的人就生病；在一个城酝酿，那个城的人就生病；流传到千里之外，千里之外的人就生病。甚至死亡接连不断，全家全境，无不如此，实在令人痛心。这种病必须用符水来救治，然而符水终究不会广泛流传于世，现在另外制定一种方法，取一枚管仲（即白芷），浸泡在水缸内，加入少许白矾，人们每天饮用，那么瘟疫的病就不会发生了。这是极其灵验的神妙之法。
天师说：儿科只要掌握要领，就没有难治的病人。现在传授一个法门，使万世的小儿都能达到仁爱和长寿的境界。方法在于先看气色，后看脉象。小儿有病，某处的颜色必定鲜艳，以鼻子上、眼睛中间的中正精明穴上来辨别。颜色红的，是心热；红筋横直显现于山根（鼻根部），都是心热。颜色紫的，是心热严重，而且肺也有热。颜色青的，是肝有风邪；青筋直现的，是肝热；青筋横现的，也是肝热；直的表示风邪上行，横的表示风邪下行。颜色黑的，是风邪严重且肾中有寒。颜色白的，是肺中有痰。颜色黄的，是脾胃虚弱而腹泻，黄筋显现于山根，不论横直，总归是脾胃的病症。只有这几种颜色，没有其他颜色，所以一眼就能知道小儿的病了。大人诊脉看寸、关、尺三部，小儿难道唯独不是这样吗？只是小儿不必细察至数（脉搏跳动的具体次数细节），只看脉搏快与不快罢了。脉搏极快则是热证，不快则是寒证。在快慢之中，浮脉主风，沉脉主寒，缓脉主湿，涩脉主邪气，滑脉主痰，如此而已。七表八里等复杂的脉象分类，都不必去看。如果懂得我的诀窍，《脉诀》也不必读了。脉搏有止歇的，是疼痛所致，其余也不必再谈。小儿的症状，大抵不过是吐泻、厥逆、风寒暑热而已，其余痘疹、失音等，我没有其他疾病要讲。或者心疼腹痛，或有痞块，或有疮疔，都可以一览而知。然而，小儿的疾病，虚证占十分之九，实证占十分之一，所以用药应以补益为先。现在确立三个方子，通治小儿各种病症。第一方：人参三分，白术五分，茯苓一钱，甘草一分，陈皮二分，神曲三分，半夏一分，这是六君子汤的加减方，通治小儿脾胃虚弱之病，效果神奇。如伤食肉食者，加山楂五粒；伤食米食者，加麦芽五分；伤食面食，加萝卜子三分；呕吐者，加白豆蔻一粒，去掉甘草，加生姜三片；腹泻者，加干姜三分，猪苓五分。第二方治疗外感病。或是伤风伤寒，或是咳嗽，或是发热，或是不发热，或是头痛，或是鼻塞，或是痰多，或是惊悸，或是角弓反张，都用此方通治，无不神效。方用柴胡七分，甘草三分，桔梗五分，半夏三分，黄芩三分，白芍二钱，白术二钱，当归五分，陈皮二分，茯苓五分，水煎服。头痛者，加蔓荆子三分；心痛手不可按压的，是实火，加栀子一钱；按压不痛的，是虚火，加甘草八分，贯众五分，广木香三分，乳香一分；胁痛者，加芍药三钱；腹痛者，用手按压，按压时疼痛加剧的，是食积，加大黄一钱；按压而不痛的，是寒邪，不是食积，加肉桂三分，干姜三分；有汗出不止的，加桑叶一片；眼痛且红肿的，是火邪，加黄连三分，白蒺藜一分；喉痛者，加山豆根三分。第三方：治疗虚寒之症，如夜热出汗、夜啼不寐、怔忡、久咳不止、行走迟缓、语言迟缓、龟背狗肚、将成痨瘵等症，方用熟地黄三钱，山茱萸二钱，麦冬二钱，北五味子五分，玄参二钱，白术二钱，茯苓一钱，薏苡仁三钱，丹皮一钱，沙参二钱，地骨皮二钱，水煎服。倘若兼有外感，少加柴胡五分，白芍三钱，白芥子一钱。其余没有什么可以加减的了。
Lei Zhenjun said: The ancients said that the arrival of epidemics is without fixed patterns. This does not mean that there are no methods for treating epidemics, but rather that the causes leading to epidemics are without fixed patterns. However, there are indeed patterns. Since the arrival of epidemics has patterns, how can it be said that there are no methods for treating them? Generally, the occurrence of epidemics is mostly due to human activities mutually influencing each other, while the Qi dynamics of heaven and earth happen to resonate with them. Thus, when Qi mechanisms invade one another, and Earthly Qi responds accordingly, combining with the toxic vapors of Heaven and Earth, an epidemic forms. If it invades a village, the people in that village fall ill; if it brews in a city, the people in that city fall ill; if it spreads over a thousand li, the people over a thousand li fall ill. It may even lead to successive deaths, affecting entire families and regions, which is deeply lamentable. Such diseases must be saved by talisman water (Fushui), yet talisman water will never be widely transmitted in the world. Therefore, I now prescribe another method: take one piece of Guanzhong (Bai Zhi / Angelicae Dahuricae Radix), soak it in a water vat, add a small amount of Bai Fan (Alumen), and have people drink from it daily. Then, the disease of epidemic will not arise. This is a truly miraculous method.
Zhang Zhenren said: A wonderful prescription. This is a method for preemptively preventing epidemics.
Tianshi said: In pediatrics, once the essentials are grasped, there are no difficult cases to treat. I now transmit a method so that children for ten thousand generations may attain benevolence and longevity. The method lies in first observing the complexion, then examining the pulse. When a child is ill, certain colors must appear bright. One distinguishes this at the Zhongzheng Jingming acupoint located between the nose and eyes. Red color indicates Heart Heat (Xin Re); red veins appearing horizontally or vertically on the Shangen (root of the nose) all indicate Heart Heat. Purple color indicates severe Heart Heat and also Lung Heat. Green color indicates Liver Wind (Gan Feng); green veins appearing vertically indicate Liver Heat; green veins appearing horizontally also indicate Liver Heat. Vertical indicates Wind moving upward; horizontal indicates Wind moving downward. Black color indicates severe Wind and Cold in the Kidney. White color indicates Phlegm in the Lung. Yellow color indicates Spleen-Stomach Deficiency causing diarrhea; yellow veins appearing on the Shangen, whether horizontal or vertical, always indicate Spleen-Stomach disorders. There are only these few colors, no others, so one glance reveals the child's illness. Adults examine the pulse at the Cun, Guan, and Chi positions; why should children be different? However, for children, there is no need to count the exact number of beats, only to observe whether the pulse is rapid or not. Extremely rapid indicates Heat; not rapid indicates Cold. Among rapid pulses, floating indicates Wind, deep indicates Cold, moderate indicates Dampness, choppy indicates Pathogenic factors, and slippery indicates Phlegm. That is all. The complex classifications of Seven Exterior and Eight Interior pulses need not be studied. If one knows my secret, there is no need to read the Pulse Rhymes. Pulses with pauses indicate pain; the rest need not be discussed. Children's symptoms generally involve vomiting and diarrhea, cold limbs, Wind-Cold, Summer-Heat, and Heat. Other conditions like pox-rashes and aphonia are mentioned, but I have no other diseases to discuss. Whether it is heartache or abdominal pain, presence of masses, or carbuncles and furuncles, they can be known at a glance. However, among children's illnesses, nine-tenths are Deficiency, and only one-tenth is Excess. Therefore, medication should prioritize tonification. I now establish three prescriptions to treat various pediatric conditions universally.
First Prescription: Renshen (Ginseng Radix) 3 fen, Baizhu (Atractylodis Macrocephalae Rhizoma) 5 fen, Fuling (Poria) 1 qian, Gancao (Licorice Root) 1 fen, Chenpi (Citri Reticulatae Pericarpium) 2 fen, Shenqu (Massa Medicata Fermentata) 3 fen, Banxia (Pinelliae Rhizoma) 1 fen. This is a modification of Liujunzi Tang (Six Gentlemen Decoction), universally treating weak Spleen-Stomach in children with miraculous effect. For food stagnation from meat, add 5 Shan Zha (Crataegi Fructus); for rice, add 5 fen Mai Ya (Hordei Germinatus); for wheat/noodles, add 3 fen Luobo Zi (Raphani Semen). For vomiting, add 1 Baixi Kou (Amomi Fructus Rotundus), remove Gancao, add 3 slices of Shengjiang (Zingiberis Rhizoma Recens). For diarrhea, add 3 fen Ganjiang (Zingiberis Rhizoma) and 5 fen Zhuling (Polyporus).
Second Prescription treats exterior infections. Whether Wind-Cold injury, cough, fever or no fever, headache, nasal congestion, excessive phlegm, palpitations, or opisthotonos, this prescription treats them all with miraculous effect. Use Chaihu (Bupleuri Radix) 7 fen, Gancao 3 fen, Jiegeng (Platycodonis Radix) 5 fen, Banxia 3 fen, Huangqin (Scutellariae Radix) 3 fen, Baishao (Paeoniae Radix Alba) 2 qian, Baizhu 2 qian, Danggui (Angelicae Sinensis Radix) 5 fen, Chenpi 2 fen, Fuling 5 fen. Decoct in water and take. For headache, add 3 fen Manjingzi (Vittaginis Fructus). For heartache where pressing makes it worse, it is Excess Fire; add 1 qian Zhizi (Gardeniae Fructus). Where pressing does not hurt, it is Deficiency Fire; add 8 fen Gancao, 5 fen Guanzhong (Compositae Herba), 3 fen Guangmuxiang (Aucklandiae Radix), 1 fen Ruxiang (Olibanum). For hypochondriac pain, add 3 qian Shaoyao (Paeoniae Radix). For abdominal pain, if pressing increases pain, it is Food Stagnation; add 1 qian Dahuang (Rhei Radix et Rhizoma). If pressing does not hurt, it is Cold, not Food Stagnation; add 3 fen Rougui (Cinnamomi Cortex) and 3 fen Ganjiang. For unceasing sweating, add 1 leaf of Sangye (Mori Folium). For painful, red, and swollen eyes, it is Fire; add 3 fen Huanglian (Coptidis Rhizoma) and 1 fen Baijili (Tribuli Fructus). For sore throat, add 3 fen Shandougen (Sophorae Tonkinensis Radix).
Third Prescription treats Deficiency-Cold conditions, such as night fever with sweating, night crying and insomnia, palpitations, chronic cough, delayed walking and speaking, tortoise back and dog belly, and conditions approaching consumption (Lao Zhai). Use Shudi (Rehmanniae Radix Preparata) 3 qian, Shanzhuyu (Corni Fructus) 2 qian, Maidong (Ophiopogonis Radix) 2 qian, Bei Wuwei Zi (Schisandrae Fructus) 5 fen, Yuanshen (Scrophulariae Radix) 2 qian, Baizhu 2 qian, Fuling 1 qian, Yiren (Coicis Semen) 3 qian, Danpi (Moutan Cortex) 1 qian, Shashen (Glehniae Radix) 2 qian, Digupi (Lycii Cortex) 2 qian. Decoct in water and take. If accompanied by exterior infection, add a little Chaihu 5 fen, Baishao 3 qian, Baijiezi (Brassicae Semen) 1 qian. There is nothing else to modify.