海藏治一子。自婴至童。盗汗凡七年矣。诸治不效。与凉膈散、三黄丸。三日病已。盖
肾为五液。化为五湿。相火迫肾。肾水上行。乘心之虚而入手少阴。心火炎上而入肺。欺其
不胜己也。皮毛以是而开。腠理元府不闭。而为汗出也。出于睡中者为盗汗。以其觉则无之
故经云。寝汗憎风是也。先以凉膈泄胸中相火。相火退。次以三黄丸泻心火以助阴。则肾
水还本藏。元府闭。汗为之止矣。
景岳曰。予仲儿生未两周。初秋感寒发热。脉微紧。素知其脏气属阴。不敢清解。以芎
苏、羌、芷、细辛、生姜之属。冀散其寒。一剂下咽。不惟热不退而反大泻作。连泻二日
又加气喘。斯时也。将谓其寒气盛耶。何以用温药而反泻。将谓其火刑金耶。岂以清泻连
日而尚堪寒凉。将谓其表邪之未除耶。则何以不利于疏散。束手无策。且见其表里俱剧。大
喘垂危。又岂浅易之剂所能挽回。沉思良久。渐有所得。乃用人参二钱。生姜五片。煎汤。
以茶匙挑与二三匙。即怀之而旋走室中。徐察其呼吸之进退。喘虽未减。亦不见增。又与三
四匙。少顷。则觉其鼻息似乎少舒。遂与半小钟。更觉有应。自午及酉。完此一剂。适一医
至。曰误矣。大喘如此。岂可用参。速以抱龙丸解之。余不听。复煎人参二钱五分。自酉至
子尽其剂。剂完而气息遂平。 大睡。泻亦止而热亦退矣。所以知其然者。观其因泻反喘
岂非中虚。设有实邪。自当喘随泻减。是可辨也。向使误听彼医。易以清利。中气一脱。
即当置之死地。必仍咎余之误用参也。孰是孰非。何从辨哉。
张元素（号海藏）治疗一个男孩。从婴儿到儿童时期，盗汗持续了七年之久。各种治疗方法都无效。他给予凉膈散和三黄丸。三天后病愈。这是因为肾将体液转化为五种湿气。相火逼迫肾脏，导致肾水上行，乘心气虚弱而侵入手少阴心经；心火炎上并进入肺脏，欺侮肺金不能克制它。因此皮毛张开，腠理和玄府（汗孔）不闭合，从而出汗。在睡眠中出汗的称为盗汗，因为醒来后就停止了，所以《内经》说：“寝汗憎风”（睡觉时出汗且怕风）。先用凉膈散清泄胸中的相火，相火消退后，再用三黄丸泻除心火以助益阴液，这样肾水就能回归本脏，玄府闭合，汗也就停止了。
张景岳说：我的二儿子出生不到两周岁，初秋感受寒邪而发热，脉象微紧。素来知道他的脏腑之气属于阴盛体质，不敢使用清热解表的方法，于是用川芎、紫苏、羌活、白芷、细辛、生姜这类药物，希望发散其寒邪。一剂药喝下去后，不仅热不退，反而出现严重腹泻。连续腹泻两天，又加上气喘。在这个时候，心想难道是寒气太盛吗？为什么用了温药反而导致腹泻？难道是火邪刑克肺金吗？难道经过几天的清泻治疗后还能耐受寒凉药物？难道是表邪没有解除吗？那为什么疏散表邪的药物也不见效？束手无策。而且看到病人表里病情都加重，大喘几乎危殆，这哪里是轻浅简单的方剂所能挽回的。沉思良久，渐渐有了心得。于是用人参二钱、生姜五片，煎汤。用茶匙挑取二三匙喂服，随即抱着他在室内慢慢走动，仔细观察呼吸的进退。虽然气喘没有减轻，但也没有增加。又喂三四匙，过了一会儿，觉得他的鼻息似乎稍微舒缓一些。于是给他喝了半小钟（容器单位），感觉更有反应。从中午到傍晚，喝完这一剂药。恰好一位医生到来，说：“错了。如此严重的大喘，怎么能用人参？赶快用抱龙丸来解毒。”我不听从，又煎人参二钱五分，从傍晚到半夜喝完这一剂。药完后气息就平稳了，沉沉睡去，腹泻也停止，热也退了。之所以知道这样做是对的，观察他因为腹泻反而气喘，这难道不是中气虚弱吗？如果有实邪，自然应该是气喘随着腹泻而减轻，这是可以辨别的。假如当初误听那位医生的话，改用清热利湿的药物，中气一旦脱失，就会置人于死地，最终一定会责怪我误用人参。谁是谁非，从哪里去辨别呢。
Zhang Yuansu (styled Haizang) treated a boy. From infancy to childhood, he suffered from night sweats for seven years. Various treatments were ineffective. He prescribed Liangge San (Cooling the Mediator Powder) and Sanhuang Wan (Three-Yellow Pill). After three days, the illness was cured. This is because the Kidney transforms body fluids into five types of dampness. Ministerial Fire (Xiang Huo) forces the Kidney, causing Kidney Water to ascend. It exploits the deficiency of the Heart to enter the Hand-Shaoyin (Heart) channel. The Heart Fire flares upward and enters the Lung, bullying the Lung Metal which cannot overcome it. Consequently, the skin pores open, and the Couli (interstices) and Yuanfu (sweat gates) fail to close, leading to sweating. Sweating that occurs during sleep is called night sweat; it stops upon waking, as stated in the Classics: "Sweating in sleep with aversion to wind." First, Liangge San was used to drain the ministerial fire in the chest. Once the ministerial fire receded, Sanhuang Wan was used to purge the Heart Fire to assist Yin. Thus, Kidney Water returned to its home organ, the Yuanfu closed, and the sweating stopped.
Zhang Jingyue said: My second son was less than two weeks old when, in early autumn, he contracted cold pathogenic factors, resulting in fever. His pulse was slightly tight. Knowing his constitution belonged to Yin deficiency/weakness, I dared not use clearing and resolving methods. Instead, I used herbs such as Chuanxiong Rhizoma (Chuanxiong), Perilla Leaf (Zisu), Notopterygii Rhizoma et Radix (Qianghuo), Angelicae Dahuricae Radix (Baizhi), Asari Radix et Rhizoma (Xixin), and Zingiberis Rhizoma Recens (Shengjiang), hoping to disperse the cold. After one dose was swallowed, not only did the fever not subside, but severe diarrhea ensued. After two days of continuous diarrhea, wheezing and panting (chuan) developed. At this moment, I wondered: Was the cold pathogen excessive? Why did warm herbs cause diarrhea? Was it Fire punishing Metal? Could the patient still tolerate cold herbs after days of purging? Was the exterior pathogen unresolved? Then why did dispersing methods fail? I was at a loss. Seeing both interior and exterior conditions worsen, with severe panting approaching critical danger, I realized simple formulas could not save him. After deep contemplation, I gradually gained insight. I used Ginseng Radix et Rhizoma (Renshen) 2 qian and Zingiberis Rhizoma Recens (Shengjiang) 5 slices, decocted in water. Using a tea spoon, I administered 2-3 spoons, holding the infant and walking slowly around the room, carefully observing the advancement and retreat of respiration. Although the panting did not decrease, it did not increase either. I gave another 3-4 spoons. Shortly after, his nasal breathing seemed slightly relieved. I then gave half a small cup, feeling a positive response. From noon until evening, he completed this dose. A physician arrived and said, "You are mistaken. With such severe panting, how can you use Ginseng? Quickly administer Baolong Wan to resolve the toxin." I did not listen. I decocted another 2.5 qian of Ginseng Radix et Rhizoma (Renshen) and administered it from evening until midnight. Upon completion of the dose, his breath stabilized, he fell into a deep sleep, the diarrhea stopped, and the fever subsided. The reason I knew this was correct is that observing him develop panting due to diarrhea suggests Middle Qi deficiency. If there were an excess pathogen, the panting would naturally decrease with the diarrhea; this is distinguishable. Had I mistakenly listened to that physician and switched to clearing and draining herbs, once the Middle Qi collapsed, he would have been placed in a fatal situation, and they would surely blame me for misusing Ginseng. Who is right and who is wrong? How can one distinguish?