High Fever, Cough with Vomiting, and Sleeplessness? Doctor Miao Xiyong’s Case of Yangming Heat with Qi-Yin Injury — Cured by Breakfast
Patient search terms: high fever / fever that won’t break / cough / coughing until vomiting / thirst / dry nose / can’t sleep
Opening: one dose down, cured by the time breakfast arrived
In the Ming dynasty there lived a famous physician named Doctor Miao Xiyong, a native of Changshu in Jiangsu and one of the founding masters of the warm-disease (wen bing) school. He was at his very best with warm-heat illnesses. And he had a signature style: he diagnosed with unerring precision, prescribed with bold, decisive doses, and liked to lay his cards on the table in advance — when he told you how long until you’d be well, he meant exactly that.
Today’s case is a perfect example. A Ministry of Personnel official had contracted a febrile illness. The doctors before had failed to cure him. Doctor Miao took over, wrote out a single prescription, and told him to take it at daybreak — by breakfast he would be well. The whole recovery happened within the space of one morning meal.
💬 Note from Doctor Luo: Let me first introduce this Doctor Miao Xiyong — his courtesy name was Zhongchun, and he was a remarkable character: a great bushy beard, a voice that could rattle the walls, an open, generous spirit, and a habit of practicing medicine as he traveled far and wide. He had something of the knight-errant about him. In treatment he was especially skilled in the art of clearing heat, and he is counted among the founding figures of the warm-disease school. Keep this gallant doctor in mind — we’ll be seeing a great deal of him.
Who was the patient: Zhang Hengyang, an official of the Ministry of Personnel, laid low by febrile disease
The patient was named Zhang Hengyang, an official of the xuan bu — that is, the Ministry of Personnel (li bu), the department in charge of evaluating officials and managing personnel matters, roughly the equivalent of a modern organization department. In other words, this was a government official.
He had contracted an externally contracted febrile disease (wai gan re bing), and the illness had already sunk a layer deeper — it had reached the Yangming stage.
💬 Note from Doctor Luo: Let me explain what “Yangming” means here. When a pathogenic influence comes in from outside, the first stage is Taiyang — the pathogen is at the surface of the body, and the body begins to resist. The second stage is Yangming — the body now mobilizes all its strength to fight, and that is when the high fever erupts. When we say the disease is “in Yangming,” the verdict is already written on the wall: this is a state of intense heat.
How sick was he: burning fever, and coughing so hard he vomited
Zhang Hengyang’s symptoms, listed one by one, are all hard to bear:
Headache, zhuang re (blazing high fever), ke shen (violent coughing), thirst, coughing and vomiting at the same time — he coughed until he threw up — plus a dry nose and bu de mian — he was so restless and agitated that he could not sleep at all.
💬 Note from Doctor Luo: Notice this “bu de mian” — sleeplessness — and the character hidden inside it: “fan,” restlessness and vexation. The body is locked in fierce combat with the invading pathogen, heat is pressing upward, so how could anyone sleep? That “fan” — the agitation — is an important clue for the diagnosis that follows.
The family first invited another physician, who failed to cure him. Only then did they call for Doctor Miao Xiyong.
What the previous doctor did: Ge Gen Tang — it sounded reasonable, but it was wrong
The previous physician examined him and announced: this is a Yangming syndrome. Doctor Miao said: correct, your diagnosis is not wrong. Then he asked: and what did you prescribe? The answer: Ge Gen Tang (Kudzu Root Decoction).
The moment Doctor Miao heard it, he shook his head: wrong.
💬 Note from Doctor Luo: The previous physician refused to accept this and retorted: isn’t Ge Gen Tang a Yangming-channel formula? Doctor Miao then gave him a lesson — there are two representative formulas for relieving the exterior at the Yangming level: one is Ge Gen Tang, the other is Bai Hu Tang (White Tiger Decoction). When there is no vomiting, use Ge Gen Tang to release the exterior; but when the patient is both coughing and vomiting, the Yangming qi is rebelling upward — and in that situation, Ge Gen Tang is the wrong choice.
Why wrong? Because ge gen (kudzu root) is ascending and dispersing — its medicinal nature carries the qi upward. This patient’s qi was already rebelling upward, and he was vomiting severely. Add more ascending, dispersing action, and you are pouring oil on a fire.
💬 Note from Doctor Luo: Let’s take Ge Gen Tang apart. It is essentially Gui Zhi Tang (Cinnamon Twig Decoction) plus ge gen and ma huang (ephedra) — its core job is still harmonizing ying and wei (nutritive and defensive qi) and releasing exterior cold. Ge gen itself only adds a minor action of relieving the muscles and clearing heat. So Ge Gen Tang’s main business is dispersing cold. It belongs in the situation of a Taiyang-Yangming combination where the patient bi zi xia li — “will necessarily have diarrhea” — because the exterior pathogen is pushing inward and driving a collapse into the Yangming, causing diarrhea. There you use Ge Gen Tang to “pull” the upright qi back upward — a technique the classics call ni liu wan zhou, “towing the boat against the current.” For someone like Zhang Hengyang — blazing fever, headache, violent cough, dry nose, sleeplessness — Ge Gen Tang is heading in entirely the wrong direction. So you can see: this previous physician had not yet mastered the Shang Han Lun (Treatise on Cold Damage).
The prescription: the Bai Hu Tang base, minus three ingredients, plus bamboo leaf and ophiopogon
What did Doctor Miao use? He built on the Bai Hu Tang (White Tiger Decoction) base — sheng shi gao (gypsum), zhi mu (anemarrhena), gan cao (licorice) and jing mi (rice) — then added mai dong (ophiopogon) and zhu ye (bamboo leaf). That gives you the Shang Han Lun formula Zhu Ye Shi Gao Tang — the Bamboo Leaf and Gypsum Decoction.
The original Zhu Ye Shi Gao Tang has seven ingredients: zhu ye (bamboo leaf), shi gao (gypsum), ban xia (pinellia), mai men dong (ophiopogon), ren shen (ginseng), gan cao (licorice) and jing mi (rice). But when Doctor Miao wrote out the prescription, he removed the ban xia, removed the ren shen, and left out the gan cao as well — keeping only the clear Bai Hu Tang base plus bamboo leaf and ophiopogon: sheng shi gao, zhi mu, zhu ye, mai men dong and jing mi.
💬 Note from Doctor Luo: This is what it looks like when a master wields a classical formula — the original sits in his hand, and he subtracts one ingredient here, keeps another there, with perfect ease. Why could he dare to alter it like this? Because he knew the materia medica through and through — he wrote a whole monograph, the Shen Nong Ben Cao Jing Shu (Commentary on the Divine Husbandman’s Classic of Materia Medica), studying every single herb to the bottom. That deep familiarity with herbs is exactly the foundation that makes such bold adaptation possible.
Why remove ban xia: the three prohibitions — the thirsty, the sweaty, the bleeding
First, why drop the ban xia? Doctor Miao explained later: ban xia has three prohibitions — ke jia, han jia, xue jia: patients who are thirsty, patients who sweat heavily, and patients who bleed must not be given ban xia.
💬 Note from Doctor Luo: “Ke jia” means a person who is desperately thirsty; “han jia” a person who sweats profusely; “xue jia” a person with active bleeding — these are terms the physicians of Zhang Zhongjing’s era used. Why the prohibition? Because ban xia is pungent, warm and drying — its nature is warming, and it also dries dampness. Here the Yangming heat pathogen is blazing, and the thirst exists because the heat has scorched away the body’s fluids. To add pungent, warm, drying ban xia on top of that would be like baking the last remaining fluids dry — absolutely unsuitable.
And why remove the gan cao? Someone asked: why don’t you use licorice? Doctor Miao answered: ou jia ji gan — “the vomiting patient avoids the sweet.” This is a rule from Zhang Zhongjing: for a patient who vomits, sweet flavors tend to coat the diaphragm and aggravate the retching, so sweets are generally set aside.
As for the ren shen — it appears in the original Zhu Ye Shi Gao Tang, and Doctor Miao removed it too, because this patient’s injury was chiefly to the yin; the qi injury was not yet prominent, so the ginseng could be spared for the time being.
Using medicine like commanding troops: six hundred thousand veterans, or defeat with two hundred thousand
Once the prescription was written, Doctor Miao did something especially memorable — he said something to the family that sounded cryptic at the time:
“Wang Jian would not go without six hundred thousand men; Li Xin, with two hundred thousand, came fleeing back.”
What was this allusion?
💬 Note from Doctor Luo: When the First Emperor of Qin was conquering the six states and turned to attack the state of Chu, he asked the young general Li Xin how many men he needed. Li Xin said two hundred thousand elite troops would be enough. Then he asked the veteran general Wang Jian. Wang Jian said: nothing less than six hundred thousand. The First Emperor thought Wang Jian was too old, sent Li Xin with two hundred thousand — and Li Xin was routed by the Chu general Xiang Yan, fleeing back in disgrace. Only then did the First Emperor go in person to beg Wang Jian to take command, gave him six hundred thousand men, and conquered Chu in a single campaign. By the way, this same Li Xin was the ancestor of the later “Flying General” Li Guang — unfortunately for him, that lost battle meant he never won a place among the great commanders.
Doctor Miao told this story to drive home one point to the family: my prescription must be given in full dosage — if you take sixty thousand troops and shrink them to two hundred thousand, defeat is certain. That is why he insisted on a “large dose” (da ji) of Zhu Ye Shi Gao Tang — not a single bit could be reduced.
💬 Note from Doctor Luo: From this you can see Doctor Miao treated illness the way a general commands troops. He associated with the Donglin literati — a circle of scholar-officials — and in daily conversation he never discussed statecraft. But bring up the art of war and he would hold forth brilliantly, spellbinding everyone. The Donglin men regarded him as their elder brother (zhang xiong) — and later, whenever anyone in the Donglin circle fell ill, they all came to him. All that strategic insight was put to use in his prescriptions.
The result: dose at dawn, well by breakfast
Doctor Miao packed up the medicine, and as he was leaving he dropped one more line: drink this dose now, take one more at first light tomorrow — and by breakfast, the illness will be gone.
The family was doubtful. And what happened? Exactly as he said — one dose went down, and by morning the disease was cured, matching his words to the letter.
💬 Note from Doctor Luo: Look at this Doctor Miao Xiyong: the previous doctor treated it wrong, and he takes over; he tells you how big his dose must be — six hundred thousand veterans cannot be shrunk to two hundred thousand; then he tells you when to take it and when you’ll be well — full dose, precise timing, cure on arrival. That is a true master: the moment his hand touches the case, the disease departs, and his command of the classical formulas is exact to the last detail.
What’s inside the formula: clear heat, nourish yin, generate fluids — none can be missing
This Zhu Ye Shi Gao Tang treats the classic state of qi-yin injury in the late stage of a heat illness: unremitting high fever, sweating, vexing thirst, vomiting, restless insomnia, a red tongue with a thin or absent coating, and a rapid, forceless pulse — the tongue is definitely red, the coating thin or gone, the tongue body very dry; and in spirit the patient is haggard and drained, without strength.
💬 Note from Doctor Luo: Why is the patient both hot and deficient? While the heat battles the upright qi, it scorches and consumes the fluids — that is yin injury. When fluids run short, qi is dragged down along with them — that is qi deficiency. Together they form qi-yin injury (qi yin liang shang). So treatment must advance on two fronts at once: one front clears heat (shi gao, zhi mu, zhu ye), the other nourishes yin and generates fluids (mai men dong, ren shen, jing mi). Clear the heat and generate fluids simultaneously — only that matches the disease mechanism.
Let’s take the herbs one by one: sheng shi gao (gypsum) relieves the muscles and clears heat, and can “settle the phlegm-heat of the stomach” — once the heat disperses, the vomiting stops and the agitation dissolves. It is the heart of the whole formula, and Doctor Miao used it with particular boldness. Zhu ye (bamboo leaf) clears the heart and removes vexation — it is aimed squarely at the sleeplessness. Mai men dong (ophiopogon) nourishes yin. Ren shen (ginseng) supplements qi and generates fluids (in later practice, American ginseng, xi yang shen, can be substituted). Jing mi (rice) harmonizes the stomach qi. The original indication in the Shang Han Lun reads: “After a cold has resolved, with deficiency, emaciation and scant qi, and qi rebelling upward with the desire to vomit.”
💬 Note from Doctor Luo: The decoction method also has its refinement: first decoct the main ingredients and strain out the dregs, then add the jing mi and cook until the rice is done — mi shu tang cheng, “when the rice is cooked, the soup is ready.” You don’t eat the rice; you drink the broth. Later, Doctor Zhang Xichun decocted sheng shi gao together with jing mi — he learned this very method — and he often replaced the rice with shan yao (Chinese yam), which worked just as well. These approaches are entirely usable today: make sheng shi gao the centerpiece, pair it with shan yao, swap in American ginseng — all perfectly fine.
Commentator’s note: the warm-disease school’s “clear heat and replenish fluids” begins right here
This formula was pioneered by Zhang Zhongjing, but generations after him were afraid of sheng shi gao, thinking it too cold — and the bold use of large doses of sheng shi gao began with Doctor Miao Xiyong. The later Doctor Zhang Xichun wielded sheng shi gao so brilliantly precisely because he studied the works of these predecessors.
💬 Note from Doctor Luo: The warm-disease physicians of later generations drew immense insight from three formulas — Bai Hu Tang (White Tiger Decoction), Bai Hu Jia Ren Shen Tang (White Tiger plus Ginseng Decoction), and Zhu Ye Shi Gao Tang (Bamboo Leaf and Gypsum Decoction) — and most of warm-disease treatment traces back to them. Later the school added the route of removing dampness, and so the two great directions of warm-disease medicine were fixed: clear heat and replenish fluids, and remove dampness — and of those two, the clear-heat-and-replenish-fluids direction comes from formulas like Zhu Ye Shi Gao Tang. It is enormously important. Even today, when you meet an unremitting high fever with consumption of fluids, this line of thinking works as well as ever.
And so Zhang Hengyang’s case closed in fine style. Tomorrow we’ll continue Doctor Miao Xiyong’s story — this gallant knight-errant with the great bushy beard and the voice that could shake walls — and see what remarkable cases he brings us next.
Based on Doctor Luo Dalun’s narration of Doctor Miao Xiyong’s medical cases; the case comes from Xian Xing Zhai Yi Xue Guang Bi Ji (《先醒斋医学广笔记》 — Notes from the Studio of Fresh Awakening on Broad Medical Learning) by Doctor Miao Xiyong (Ming dynasty).