Breathing Hard Day and Night — Hard to Breathe In and Hard to Breathe Out? Doctor Zhang Xichun’s Case of Sinking of the Great Qi with Kidney Deficiency, Solved by One Herb That Goes Up and Down
Patient search terms: wheezing day and night without stopping / breathing that feels like hard work / hard to draw breath in / hard to breathe out / tight back / always wanting someone to pound the back Medical terms: sinking of the great qi (da qi xia xian) · wheezing disorder (chuan zheng) · kidney failing to grasp qi (shen bu na qi) · kidney deficiency unable to hold the qi down
Opening: an old wheezing illness — and this time, the medicine stopped working
Today’s patient was forty-eight years old, well past middle age, and he carried an old problem — wheezing (chuan zheng). You don’t see this condition as often today, but when you do, the scene is alarming: a man gasping through his open mouth, unable to climb a single flight of stairs without struggling for breath. In the old days, northern Chinese winters were heated by burning coal and firewood; once the windows and doors were sealed shut, the respiratory system was under constant assault, so wheezing illnesses were everywhere.
💬 Note from Doctor Luo: Wheezing sounds like a lung problem — but remember, Chinese medicine never treats just one part. Today’s case is a perfect example: the root of the illness was not in the lungs at all. Doctor Luo keeps saying: when you see A, think of B; when you see yin, think of yang. The body is one whole.
Who was the patient? An old problem that flared two or three times a year
This patient’s wheezing followed a strict pattern: the moment he caught external cold — even a light brush of wind — it flared up, and every year it attacked two or three times. Each time, the doctors prescribed Xiao Qing Long Tang with added gypsum (Minor Blue Dragon Decoction). We’ve discussed this formula before: Xiao Qing Long Tang treats external cold with internal fluid retention (wai han nei yin) — the body carries dampness, and when a heavy cold attacks from outside, the two pressures squeeze together and produce cough and wheeze. The decoction scatters the external cold and transforms the internal fluids; if there is heat inside as well, raw gypsum (shi gao) is added. Every attack, the medicine worked — and over time, the patient simply got used to it.
The old remedy failed: two doses of Xiao Qing Long Tang with gypsum, and not a flicker of change
But this time was different. This attack was violent — he wheezed day and night without stopping. The doctor applied the usual remedy, Xiao Qing Long Tang with gypsum. Two doses went down, and absolutely nothing happened. Not a flicker of improvement.
By now, most of us would think: another respiratory wheezing case, right? Actually, there was a deeper twist waiting. At this point, Doctor Zhang Xichun was called in.
Doctor Zhang Xichun took the pulse: rapid, deep and soft — “this may not be a lung problem”
Doctor Zhang Xichun placed his fingers on the wrist: the pulse was rapid — about six beats to one respiration, beating faster than normal — but at the same time it carried a deep and soft-weak quality (chen ru): sinking, and lacking strength.
His judgment: with the pulse running this fast, the problem is yin deficiency — the kidney cannot grasp the qi. More precisely: kidney yin is insufficient, so the kidney fails to hold the qi down (shen bu na qi). Why? Chinese medicine holds that the kidney governs grasping the qi (shen zhu na qi): when we breathe, the force of drawing the breath in belongs to the kidney. When kidney qi is insufficient, its grasping function declines; the inhaling power weakens, the qi drifts upward instead of settling down, the qi mechanism rebels — and the result is wheezing.
💬 Note from Doctor Luo: This is why a chronic wheezer cannot be treated by staring at the lungs alone — exhaling is the lung’s business, but inhaling is the kidney’s business. When kidney qi weakens, drawing a breath becomes an effort, and all the qi floats up top with nowhere to go. How could he not wheeze?
First, tonify the kidney to grasp the qi: shu di huang, shan yao, gou qi zi, xuan shen — with small pieces of ginseng swallowed down
The conventional approach to strengthening the kidney’s qi-grasping ability would add a few qi-descending herbs as well, to push the qi mechanism downward — you’re wheezing because qi is rushing upward, so let me send it back down. But a master like Doctor Zhang Xichun thought one step further: he saw that the pulse was weak and soft, sinking without strength, and he asked himself — if I add descending herbs on top of that, will your middle qi (zhong qi) be able to hold on? So he did not use a single qi-descending herb.
He prescribed only kidney-tonifying herbs: shu di huang (prepared Rehmannia), which nourishes kidney essence; sheng shan yao (raw Chinese yam), which greatly tonifies the lung, spleen and kidney — the three organs at once — and also strengthens the kidney; then gou qi zi (wolfberry) — shu di huang, sheng shan yao and gou qi zi are all essence-nourishing herbs — plus xuan shen (figwort root) to enrich yin and nurture the body’s fluids. Every herb here is a great tonic of true yin.
💬 Note from Doctor Luo: At this stage Doctor Zhang Xichun was focused on tonifying the kidney. The brilliance lies in his rule of “weak pulse, no attack” — when the pulse has no strength, he dared not push the qi downward, for fear the middle qi could not hold. This is the difference between a master and an ordinary doctor: that one extra step of thought is often the step that saves a life.
How was the decoction taken? With small pieces of ginseng swallowed down — the ginseng was cut into small chunks and washed down with the herbal soup. Why this method? It is a classic technique of the ancient masters — Xu Lingtai, for example, used it. Ginseng tonifies qi; taken into the upper burner (shang jiao), it supplements the qi of the heart and lung and spleen. But cut into small pieces, it dissolves slowly in the lower burner — and there it can tonify kidney qi. Sometimes Doctor Zhang Xichun paired ginseng with zhe shi (hematite) for the same purpose: to carry it downward, where it replenishes the kidney qi below.
Three doses and half better — but the patient had an odd habit: he always wanted his back pounded
Three doses of this formula: the wheezing eased — but it did not stop. Roughly half better. On the follow-up visit, Doctor Zhang Xichun puzzled over it: by all logic this formula should have finished the job — why only half? He began to observe the patient closely, and that is when he noticed something: this man loved having his back pounded.
Why the pounding? The patient explained: my back often feels tight — really tight. When people pound it for me, I feel relaxed, and my breathing feels smoother too. Doctor Zhang Xichun took the pulse again: it had improved — no longer so rapid, showing that the yin deficiency and kidney qi insufficiency were easing and the kidney yin was being nourished again. Yet it was still deep and soft, still without strength.
💬 Note from Doctor Luo: Pay attention to this detail — the illness was half better, which proved the direction was right but the job was not finished. Doctor Zhang Xichun did not hurry to add herbs; he sat down and asked about the history. A master never simply writes a prescription and walks away — he turns it over and over: there must be a reason underneath.
A sentence — “I once moved something heavy” — and Doctor Zhang Xichun understood everything
Doctor Zhang Xichun asked: when this attack began, what was different? What was it connected to? The patient answered: I once strained myself carrying a heavy object — I lifted something very heavy with all my might, and at that moment I felt my qi mechanism jam (qi ji bu shu); my breathing began to feel wrong, not smooth. Two or three days later, the wheezing started.
The moment he heard this, Doctor Zhang Xichun saw the whole picture: this is sinking of the great qi (da qi xia xian)! And not an ordinary case of it — it was compounded by kidney qi insufficiency, the kidney failing to grasp the qi. Two problems rolled into one.
💬 Note from Doctor Luo: This is the difference between a master and an ordinary doctor. The ordinary doctor sees “wheezing” and treats wheezing; Doctor Zhang Xichun saw “strained lifting injured the qi” — excessive exertion, and the great qi in the chest suddenly dropped down. If you never trace the cause to its root, your prescription will always be one breath short.
Hard to inhale means kidney deficiency; hard to exhale means sinking of the great qi
Why two problems in one? Doctor Zhang Xichun drew the distinction very finely: when the kidney is deficient and cannot grasp the qi, drawing a breath inward becomes a struggle; when the great qi sinks, breathing out becomes the struggle — because on exhalation the qi needs to move outward and upward, but it is now sinking down in the abdomen, so pushing it out feels exhausting. A person with sinking of the great qi has a telling signature: exhalation is especially hard.
So Doctor Zhang Xichun understood at once: my kidney-tonifying, qi-grasping prescription only treated half of it — I fixed the inhaling side, but the exhaling side, the breathlessness caused by sinking of the great qi, was left untreated. That is why the wheezing was only half better.
💬 Note from Doctor Luo: Doctor Zhang Xichun repeatedly analyzes the difference between inhaling and exhaling, and also between stuffiness and shortness of breath, “can’t get the breath up,” and so on. But in my view, for us it is enough to distinguish deficiency from excess. When the great qi sinks and heart-lung function is affected, strictly speaking both inhaling and exhaling are affected. If you insist on deciding “is it my exhaling or my inhaling that’s hard,” you can fall into dogmatism. What matters is knowing the difficulty does not come from stuffiness (bi men) but from weakness (wu li) — no strength, so exhaling is hard and inhaling is hard too. That is enough. Sinking of the great qi, after all, only appears when deficiency has reached a certain depth.
No sheng ma, no chai hu, no jie geng — one herb, gui zhi, that goes up and down
Once the sinking of the great qi was understood, the task was to raise the great qi. In Doctor Zhang Xichun’s Sheng Xian Tang (Sinking Qi-Raising Decoction), raw huang qi (astragalus) lifts the qi upward. But here was the problem: the patient’s kidney could not grasp the qi — the qi was already floating high and refusing to return. If lifting herbs were used, he feared the qi mechanism would rebel upward and cause trouble.
So in this formula, sheng ma (bugleweed), chai hu (bupleurum) and jie geng (platycodon) were all left out — Doctor Zhang Xichun dared not use them, fearing the qi would surge upward. What did he do instead? He used gui zhi (cinnamon twig), 3 qian (about 9 g), in their place.
💬 Note from Doctor Luo: Friends, this is Doctor Zhang Xichun’s private insight. Another doctor faced with sinking of the great qi has only sheng ma, chai hu and jie geng in his head; Doctor Zhang Xichun, confronting the complicated situation of “kidney failing to grasp qi + sinking of the great qi,” dared to swap in a single herb — gui zhi. Such flexibility in prescribing comes only from truly understanding the nature of each herb.
Why gui zhi? Doctor Zhang Xichun believed gui zhi can go upward and can go downward (ke shang ke xia). We usually think of gui zhi as warming and unblocking the channels — the very first formula in the Shang Han Lun (Treatise on Cold Damage), Gui Zhi Tang (Cinnamon Twig Decoction), uses it for exactly that: warming the channels and scattering cold. But Doctor Zhang Xichun saw deeper. The cinnamon tree’s twigs grow in a free, untrammeled, spreading way; gui zhi can lead the qi of the viscera upward, letting the true qi rise; and at the same time it can descend rebellious qi — when the qi mechanism rebels upward, gui zhi can push it back down. Zhang Zhongjing’s Gui Zhi Jia Gui Tang (Cinnamon Twig Decoction plus Extra Cinnamon) treats ben tun (running piglet syndrome) — that condition where qi surges upward like a piglet running — relying on gui zhi to send the rebellious qi down. When liver qi rebels upward, gui zhi can also press the rising liver qi back down.
Why is gui zhi so remarkable? It flowers in autumn and receives the metal qi
How can one herb go both up and down? Doctor Zhang Xichun’s explanation is delightful: gui zhi tastes acrid (wei xin), and it flowers in autumn — it receives the metal qi (jin qi) of autumn, and that metal qi is very full. Because it carries the nature of metal, it excels at calming the liver wood — metal controls wood (jin ke mu). When liver fire rushes upward, gui zhi can press the liver qi down. At the same time, gui zhi is a twig, and twigs grow upward — so it can also rise, lifting the qi up.
💬 Note from Doctor Luo: One herb, gui zhi: the twig grows upward, so it can lift; it flowers in autumn and receives metal qi, so it can descend — descending within rising, rising within descending, never letting the qi mechanism shoot up and fail to come back. Whenever Doctor Zhang Xichun could not use chai hu, sheng ma or jie geng, he would reach for gui zhi. A truly remarkable herb.
In the formula, Doctor Zhang Xichun also doubled the zhi mu (Anemarrhena) and added 4 qian (about 12 g) more of xuan shen — cool, moistening herbs to restrain the warming character of the prescription. And how did it work? After several doses, the patient was completely cured.
Bonus: a tight back hides a secret of the body
This case leaves behind a very practical diagnostic pointer: the patient said his back felt tight, and he needed someone to pound it before he could feel comfortable. Why does the back feel tight? There are many reasons — some people have qi stagnation, some have yang qi that fails to rise. But there is another possibility: sinking of the great qi. When the great qi sinks, breathing is weak and labored, and every channel of the body is affected — and the part most easily overlooked is the back.
💬 Note from Doctor Luo: When we analyze a problem in the body, we must treat the body as one whole. When you see lots of cervical-spine problems, have you ever wondered whether they connect to the throat? Front and back: the throat’s qi mechanism is often blocked — chronic pharyngitis — and the constant irritation can pull on the cervical spine behind it. When you see a lumbar problem, can you think of the abdomen? A very heavy man with thick phlegm-dampness inside — could that not bear down on his lower back? The body is one yin and one yang; front and back correspond. Seeing a problem in front, know there is a counterpart behind; seeing a problem behind, think of what lies in front. Real treatment considers the whole body.
And back to the pounding: it should never be a hard, thumping hammering — it should be a light tapping, patting gently upward, to rouse the qi mechanism; the breathing then feels a little freer. If you observe someone whose breathing is weak, short of breath, a little labored — and who loves having his back pounded — you can wonder: is this sinking of the great qi? This, too, is one of its diagnostic clues.
💬 Note from Doctor Luo: Doctor Zhang Xichun wrote this case very simply — not one extra word. But when we read case records, we must read what lies behind them. Why did he ask that one extra question about the history? Why did he swap in one herb, gui zhi? This is the way Chinese medicine thinks: when you see A, associate it with B; when you see yin, think of yang; consider the body as a whole. Learning this way of thinking matters far more than memorizing a single formula.
Based on Doctor Luo Dalun’s commentary on the case records of Doctor Zhang Xichun, from Medical Records Integrated Chinese and Western Medicine (《医学衷中参西录》).