Coughing and Wheezing Worse the Moment You Lie Down? — Doctor Zhang Xichun Treated a Merchant’s Phlegm-Wheezing from External Cold with Internal Fluid
Patient search terms: coughing and wheezing at once / cough from catching cold / coughing when lying down / thin frothy white sputum / years of wheezing that returns every winter / coughing so badly at night you cannot lie flat Medical terms: consumptive lung disease (fei lao) · phlegm wheezing (tan chuan) · external cold with internal fluid · Xiao Qing Long Tang pattern · deficiency of both qi and blood
Opening: a wheeze that forces you to gape your mouth and raise your shoulders
Today we continue with Doctor Zhang Xichun (张锡纯) and how he treated lung disease. Work through the Medical Records Integrated Chinese and Western Medicine with us for a few days running, and you will see how clear his thinking was about this deficiency-type lung disease — cough and wheeze. Today’s patient had consumptive lung disease with phlegm wheezing — fei lao being a lung illness born of exhaustion and wasting, and tan chuan meaning wheezing accompanied by phlegm.
💬 Note from Doctor Luo: Let me first sort out the terms for you. Wheezing (chuan) is rapid, strained breathing — you feel suffocated and cannot get your breath. Asthma with wheeze sound (xiao) is when there is a whistling sound — a “hissing” in the throat. A person with that whistling sound certainly has narrowed airways and certainly has wheezing; but a person who wheezes does not necessarily have the whistling sound. Coughing and wheezing (ke chuan) means the cough itself drives the breathing into strain and suffocation. How severe can wheezing get? Chinese medicine calls it opening the mouth and raising the shoulders — the mouth gapes open, the shoulders heave with every breath, the nostrils flare as the wings of the nose work too, and in the end the person cannot lie flat — the moment he lies down, he cannot get his breath. Today’s patient was exactly that last kind.
Who was the patient? A Tianjin merchant whose illness went back to childhood
The patient was Xu Yilin (徐逸林), from District One, Tianjin, 34 years old, a merchant by trade. The root of the illness goes back to his childhood.
💬 Note from Doctor Luo: The case record says, “because in childhood he raced with other children at play, strained himself excessively, and injured the lungs” — as a boy he ran hard at play, strained himself, damaged his lungs, and the wheezing illness settled in. It looks like a trigger, but think deeper: a child in robust health can run around the playground all day and never develop wheezing. The real reason is that this child’s constitution was never strong to begin with — add cold weather and a mild external invasion at the time, the cold was not properly cleared, and a little pathogenic qi stayed lodged in the body; then the wild running exceeded what the body could bear, lung function fell, and wheezing appeared. Internal injury plus external invasion combined — the running was only the trigger. It is just that over the years the truth gets buried, and it looks as though he “ran himself into it as a child.” When you read case records, always look for what lies behind the words.
How bad was it? Lie flat at night, and the coughing and wheezing would not stop
Left alone and well cared for, the wheezing stayed quiet — but once winter came and the weather turned cold, trouble began. One day he went out, a cold wind blew on him, he was struck by wind pathogen, and suddenly began to cough; the cough in turn set off the wheezing — the cough and the wheeze fed on each other. The family called in doctor after doctor, but the medicines did nothing; at night the patient could not lie flat — the moment he lay down, the coughing and wheezing turned fierce.
💬 Note from Doctor Luo: Many people with cough or wheeze share this trait: it is worse lying down, and sitting up makes it better. That is a classic sign of retained fluid (shui yin), which we will go into shortly. This pattern — worse when lying down, relieved when sitting up — is an important clue that there is water and dampness stagnating inside the body.
How did Doctor Zhang Xichun think it through? The pulse alone told him qi and blood deficiency plus retained fluid
When the patient arrived, Doctor Zhang Xichun put his fingers on the pulse and immediately understood the situation: the left pulse was wiry, thin and hard — wiry and thin yet hard means liver blood deficiency and scanty body fluids, insufficient qi and blood; the right pulse was soft (ru) and somewhat deep — a soft pulse feels yielding under the fingers, like pressing on a thin garment soaked in water, indicating deficiency of both qi and blood, with heavy dampness inside the body; soft and somewhat deep also means the middle burner’s qi transformation is somewhat insufficient; and a deep pulse, which can only be clearly felt with heavy pressure, that is deep and without force, indicates insufficient upright qi and weak middle qi. Still, the pulse rate was normal — so the foundation had not completely collapsed.
💬 Note from Doctor Luo: In this case Doctor Zhang Xichun relied almost entirely on pulse diagnosis — a left pulse wiry, thin and hard is liver blood deficiency with scanty fluids. We discussed earlier: when the liver and kidneys are insufficient, when yin is deficient, when water fails to nourish wood and liver fire rushes upward, the left pulse turns wiry and thin. So besides the qi deficiency, a measure of yin deficiency had to be cared for too. The right pulse soft (ru) means heavy dampness and flourishing phlegm-dampness. The ru pulse is tricky to feel; hobbyists may not be able to identify it. So what do we do? Guess the tongue — in a person with qi deficiency, the sides of the tongue usually show tooth marks; in a person heavy with dampness, the coating covers the whole tongue, spreading over it, with a great deal of saliva on top. Put the clues together and the mechanism is clear: first, the upright qi is insufficient; second, cold pathogen is present on the outside; third, water and dampness stagnate inside — external cold combined with internal fluid.
The prescription: Chinese yam as the base to support upright qi, Xiao Qing Long Tang without ephedra, plus almond
Doctor Zhang Xichun wrote a formula: Xiao Qing Long Tang (Minor Green Dragon Decoction) with additions. What additions? One liang (30 g) of raw Huai Chinese yam led the formula — Doctor Zhang Xichun’s signature move for cough and wheeze with insufficient upright qi: Chinese yam greatly tonifies the lungs, spleen and kidneys, and especially the lungs and spleen, lifting the upright qi first; then dang gui (Chinese angelica) to nourish the blood, because the patient’s qi and blood were insufficient; and tian dong (asparagus root) and mai dong (Ophiopogon root) to nourish yin, taking care of that touch of yin deficiency. Those three lay the foundation; behind them came the main act: ban xia (Pinellia), gui zhi (cinnamon twig), wu wei zi (Schisandra fruit), xing ren (bitter apricot kernel), gan jiang (dried ginger), xi xin (Asarum), gan cao (licorice) and sheng jiang (fresh ginger) — that is Xiao Qing Long Tang, with the ephedra removed and almond added.
💬 Note from Doctor Luo: Xiao Qing Long Tang is a famous formula from Zhang Zhongjing’s Shang Han Za Bing Lun (Treatise on Cold Damage and Miscellaneous Diseases). Isn’t the name delightful — the Green Dragon corresponds to the east and spring; the White Tiger decoction corresponds to the west and autumn; Zhen Wu Tang (formerly also called Xuan Wu Tang) corresponds to the north; and there is a Zhu Que (Vermilion Bird) decoction for the south. All four directional spirits are complete. The Green Dragon decoctions are for dispersing cold — dispelling the chill of winter so the yang qi can rise. Xiao Qing Long Tang specifically treats cough and wheeze in which external cold and internal fluid appear together and drive lung qi to rebel upward: there must be exterior cold from getting chilled, and at the same time heavy phlegm-dampness and water-fluid inside; the two factors combine, and the lung qi goes wrong.
How do you recognize external cold with internal fluid? Master Liu Duzhou’s five checkpoints
The key to using this formula is recognizing that external cold and internal fluid exist at the same time. Master Liu Duzhou (刘渡舟) of Beijing University of Chinese Medicine — the late great master of cold damage studies — summarized a diagnostic approach that is extremely practical.
💬 Note from Doctor Luo: First, look at the complexion. Cold-fluid is a yin pathogen; it wounds the yang qi, and such a person’s face is dull gray, even a little dark — Master Liu called this the water complexion; two dark circles under the eyes, the water rings; small dark spots on the face, the water spots. Second, look at the cough and wheeze: the patient cannot lie flat — lying down makes it worse. The ancients put it with a homely image: hold a water bottle upright and nothing happens; tip it over and the water rushes at once to the mouth. A person heavy with dampness lies down, the fluid surges up to the throat, and the coughing and wheezing worsen. Third, look at the sputum: what is coughed up is thin, watery, white, like froth — some is transparent like egg white; some patients even feel the phlegm cold to the touch — this is cold phlegm, not yellow phlegm. Fourth, look at the tongue: the coating is watery-slippery, with a great deal of saliva on it; the tongue body tends to be pale, and a damp-heavy tongue is often swollen and large. Fifth, look at the pulse: with fluid pathogen the pulse tends to be wiry; a floating-wiry or floating-tight pulse means external cold at the surface, and when the illness has lasted long and the cold has entered the interior, the pulse gradually sinks.
What is “fluid” (yin)? Wherever it settles, there trouble appears
Now, about that “fluid.” Water is the clear thin liquid of the body; fluid (yin) is slightly thicker and more viscous — strictly speaking water and fluid differ a little, and both differ from phlegm and dampness, but they share the same origin, differing only in state.
💬 Note from Doctor Luo: Fluid settling in the body travels with the qi movement, and wherever it stops, trouble appears: stopped in the stomach, it easily causes nausea; stopped in the intestines, easily diarrhea; stopped in the small intestine, easily difficult urination; stopped in the limbs, easily edema. So besides cough and wheeze, the Xiao Qing Long Tang pattern also shows thirst, vomiting, difficult urination, a full lower abdomen, diarrhea and so on — hold on to Master Liu’s checkpoints, and when you see someone coughing and wheezing fiercely who matches them, you can basically judge that Xiao Qing Long Tang is called for.
Why is the formula good? Herb by herb, taken apart for you
In Xiao Qing Long Tang, ma huang (ephedra) and gui zhi (cinnamon twig) disperse the external cold — but Doctor Zhang Xichun’s patient wheezed so severely that he removed the ephedra and added almond, using gui zhi to disperse the cold; xi xin (Asarum) warms the yang and disperses cold; wu wei zi (Schisandra fruit) gathers inward — scattering on one side, gathering on the other, one opening, one closing. Gan jiang (dried ginger), xi xin, ban xia (Pinellia) and shao yao (peony) warm and transform the internal fluid: fluid is cold water congealed, and it must be dissolved by warming — dried ginger is warming, Asarum is warming and also removes dampness, Pinellia is warming. Dispersing the external cold and warming the internal fluid, treating both sides at once — that is why the effect is immediate.
💬 Note from Doctor Luo: This formula contains a famous herb trio: wu wei zi (Schisandra), gan jiang (dried ginger) and xi xin (Asarum). It is remarkably effective for cough and wheeze from external cold with internal fluid, and physicians in later generations used it constantly. In old Shanghai there was a doctor named Zhu Weiju (祝味菊), who excelled in Zhang Zhongjing’s yang-warming methods and belonged to the Fire Spirit school (huo shen pai); Shanghai also had a famous pediatric master, Xu Xiaopu (徐小圃). Once Xu Xiaopu’s own child caught an externally contracted illness; he treated the boy with the cool, clearing methods of the warm disease school in which he specialized, but no matter what he tried the child only worsened, until he was gravely ill. At his wit’s end he invited Zhu Weiju, and Zhu Weiju, using warming methods, cured the child in one stroke. Xu Xiaopu was deeply humble: “I claim to be a master of pediatrics, yet I could not even cure my own son. I should take down my shingle and come to your door as your disciple.” Zhu Weiju was moved: “We are bosom friends, equals — how could I let you become my disciple? Instead — give me your sons, and I will pass my learning on to them.” In the end Xu Xiaopu’s two sons, Xu Boyuan and Xu Zhongcai, both became famous Shanghai pediatricians; they treated along the yang-warming line, and for cough they routinely used wu wei zi, xi xin and gan jiang — the very trio inside Xiao Qing Long Tang.
The result: one dose stopped the wheezing, seven doses cured the case
So how did the formula work? In one dose, the wheezing was cured — that is the hallmark of Xiao Qing Long Tang: it acts extremely fast. But do not overuse it: the formula is powerful, stop once the disease is met (zhong bing ji zhi); it must not be taken long-term. After two more doses, most of the cough was gone; the right pulse was no longer deep, it had gained some force, and the left pulse was still near-wiry. Doctor Zhang Xichun then changed direction and began nourishing the lungs, strengthening the stomach, and building up qi and blood.
💬 Note from Doctor Luo: Remember the proper measure of Xiao Qing Long Tang: when the acute crisis comes, one or two doses to press the wheezing down — stop at improvement, then hurry back to tonify the upright qi. The Chinese yam, dang gui, tian dong and mai dong laid down at the base were paving the road “after the troops withdraw.” This is not random prescribing; it is disciplined deployment of forces.
The closing formula: Chinese yam and lily as the base, one tonify and one drain with Job’s tears
The second formula: one liang of raw Huai Chinese yam, paired with five qian (15 g) of raw lily bulb — lily nourishes yin, moistens the lungs, clears the heart and calms the spirit; in the later stage of an externally contracted illness it clears residual heat; five qian of gou qi zi (wolfberry) and five qian of tian dong (asparagus root) moisten the lungs and generate fluids; dang gui nourishes the blood; one and a half qian of stir-fried su zi (perilla seed) — perilla seed is pungent and warming, sending qi downward, resolving phlegm, calming wheeze and moistening the bowels; its action travels downward, excellent for cough and wheeze; chuan bei mu (Fritillaria bulb) clears heat and resolves phlegm; three qian of stir-fried bai zhu strengthens the spleen; three qian of raw yi yi ren (Job’s tears), crushed — removes dampness — and that “crushed” is a fine point worth noting.
💬 Note from Doctor Luo: Doctor Zhang Xichun was extraordinarily careful about preparation. If you have ever cooked Job’s tears porridge you know how hard Job’s tears are to cook through — medicines for lung disease need only twenty-odd minutes of decoction; if the Job’s tears are not crushed, after twenty minutes the center is still white and the medicinal power has never come out. So with these solid, dense herbs, you must crush them. And notice the pairing: raw Huai Chinese yam with Job’s tears — the yam tonifies the spleen, the Job’s tears drains dampness, one tonifies and one drains — a classic Doctor Zhang Xichun herb pair. Add yuan zhi (Polygala root), raw ji nei jin (chicken gizzard lining) and gan cao (licorice), and the formula mainly builds, with just a touch of cough-suppressing and wheeze-calming.
And the result? Taking one large cup of the decoction, four doses in a row: the cough was completely cured and the pulse became harmonious and normal — the first three doses had reined in the wheezing, the last four cured the cough — seven doses altogether brought a severe acute flare of coughing and wheezing to a clean, tidy end.
Putting it to use: where is Xiao Qing Long Tang used today?
What we learned today is how to use Xiao Qing Long Tang: for cough with external cold and internal fluid. There are actually many such patients today — for instance, Xiao Qing Long Tang is now commonly used for chronic rhinitis of the clear runny-nose kind, with good results; it works well for many internal medicine conditions.
💬 Note from Doctor Luo: One final reminder: this formula is fairly powerful — understand the logic, but do not use it casually on your own; it is best to have a licensed Chinese medicine practitioner prescribe it. In the next few installments we will keep telling Doctor Zhang Xichun’s lung-disease cases; read a few more and you will have a complete picture of how he treated deficiency-type lung disease — coming up next is the chapter on collapse of the great qi (da qi xia xian).
Compiled from Doctor Luo Dalun’s lectures on Doctor Zhang Xichun’s case records, from Medical Records Integrated Chinese and Western Medicine (《医学衷中参西录》).