Short of Breath, Losing Your Appetite, Coughing up Watery White Phlegm? Doctor Zhang Xichun’s Liyin Decoction Dissolved the Cold Fluid Congealed in the Chest
Patient’s search terms: can’t catch your breath / shortness of breath / appetite getting worse and worse / coughing up phlegm like clear water / white frothy phlegm / chest feels stuffed and blocked Medical terms: cold-fluid congealing · yang deficiency · water-fluid accumulation · shortness of breath
Opening: a woman nearing fifty, sick to the very edge of life
Doctor Luo Dalun continues his exploration of how Doctor Zhang Xichun used gan jiang (dried ginger). Today’s patient was a woman nearing fifty — not yet fifty years old. How sick was she? Her family had already concluded: “This is an incurable illness.”
💬 Note from Doctor Luo: This illness, you know, didn’t start out scary at all — just shortness of breath and a shrinking appetite. But no matter what they tried, she only got worse, until finally she couldn’t even get out of bed, gasping at the edge of life. Think about it — a woman near fifty, sick like this. Could her family not panic?
Who was the patient: couldn’t catch her breath, eating less and less
What were this woman’s original symptoms? Shortness of breath (短气) — she always felt she couldn’t quite get her breath out; when she breathed, the air never seemed to be enough. Then there was decreased appetite — her appetite for food kept shrinking, and she ate less and less.
💬 Note from Doctor Luo: Notice: “shortness of breath, can’t catch your breath” is the patient’s most direct sensation, and the phrase we search for most often. But behind it lie all kinds of causes — sometimes it is sinking of the great qi (大气下陷, da qi xia xian), sometimes it is cold fluid congealing. Today’s case is the cold-fluid kind.
How the earlier doctors treated her: regulating qi, raising and dispersing, tonifying the spleen and stomach — all tried, not the slightest effect
Of course doctors were called — quite a few of them. What did they do? Some opened and regulated the qi — they thought the qi was blocked and prescribed qi-moving herbs; some raised and dispersed — pulling the qi upward; still others tonified the spleen and stomach — endlessly building up the spleen and stomach, with a few qi-regulating herbs thrown in.
And the result? Not the slightest effect. Nothing worked at all.
💬 Note from Doctor Luo: You see — moving the qi, regulating the qi, tonifying the spleen: perfectly conventional ideas, yet nothing worked. Why? Because they never found the root. The root was not qi stagnation, and not spleen deficiency by itself — it was cold fluid. When the direction is wrong, even the most appropriate herbs are wasted.
Worse with every treatment: eating less each day, bedridden, at death’s door
She swallowed plenty of conventional medicine, yet the illness kept advancing — her diet shrank day by day, her appetite worse every single day; her body grew weaker and weaker, frail and unable to rise (羸弱不起), until in the end she could not get out of bed at all — the whole person gasping at the edge of death.
💬 Note from Doctor Luo: At this point the family felt the sky had fallen — what sort of incurable disease was this? From the Chinese medicine view, this is a textbook case of cold fluid congealing. Then why couldn’t the earlier doctors see it? Because everyone was making a case about “qi” and “spleen”; no one thought to look at “cold” and “fluid.”
The turning point: they heard of a Mr. Zhang in the neighboring village who specialized in critical cases
The family asked around, and heard that Doctor Zhang Xichun had repeatedly saved critical, life-threatening cases in the villages around Lin village — people at death’s door, brought back by him. So they hurriedly invited him over.
💬 Note from Doctor Luo: Listen to that — by this time Doctor Zhang Xichun’s reputation had spread: the man who specialized in critical illnesses no one else could cure. That reputation was not blown up by boasting; it was built up case by case, patient by patient.
One touch of the pulse: taut, thin, nearly gone — almost impossible to feel
Doctor Zhang Xichun arrived and took her pulse first — taut, thin, nearly imperceptible (脉弦细欲无): the pulse was drawn tight like a lute string, and extremely thin — almost impossible to feel.
Then Doctor Zhang Xichun noticed a very obvious symptom: this woman kept spitting up phlegm — and the phlegm was extremely thin.
💬 Note from Doctor Luo: Looking at the phlegm is the crucial step for telling cold from heat! If the cough brings up yellow phlegm — especially yellow, clumped, sticky phlegm — it signals heat inside the body. But if the phlegm is white and extremely thin — like white foam, some watery, some clear and translucent like raw egg white — then you should be thinking of cold fluid. The color and texture of the phlegm is your body talking to you.
The mechanism, taken apart: water, fluid, phlegm — when dampness gets heavy enough, it becomes cold fluid
What does this thin, clear phlegm tell us? It tells us the body holds cold fluid, cold liquid — this is not a heat pattern, it is a cold pattern, and water-fluid is present.
💬 Note from Doctor Luo: Chinese medicine regards the pathological liquids inside the body as three kinds: one is water — what we call dampness; when water congeals and gradually becomes a little thicker, it is called fluid (饮, yin); thicker still, and it becomes phlegm — phlegm is just a thicker liquid. That’s why “water” and “fluid” are so often spoken together — in fact both are manifestations of heavy dampness. Heavy dampness arising from insufficient yang is exactly the state we call cold fluid.
This woman had another sensation: something always felt stuck in her heart and chest — the qi could not get out, and above and below could not connect. Combining all these symptoms, Doctor Zhang Xichun judged: this was cold fluid congealing (寒饮凝结).
💬 Note from Doctor Luo: People with cold fluid congealing develop exactly this blocked-qi state — distension, oppression, a stuffed feeling. Phlegm that is white, thin, frothy, or pale like water — these are the classic signs of cold fluid. Doctor Zhang Xichun took one look and knew exactly what he was dealing with.
The prescription, in the spotlight: Li Yin Tang, with gan jiang pushed to 7 qian
What formula did Doctor Zhang Xichun write? Li Yin Tang (理饮汤, Regulating Fluids Decoction). You’ve heard of this formula in the past few days of the series — gan jiang (dried ginger) as the lead, matched with bai zhu (atractylodes) and gui zhi (cinnamon twig), plus fu ling (poria), bai shao (white peony) and the rest — the principal herb being gan jiang.
And in this case, Doctor Zhang Xichun pushed the gan jiang all the way to 7 qian!
💬 Note from Doctor Luo: How much is 7 qian? One liang is 10 qian, so 7 qian is about 21 grams — folks, that is a heavy dose! Li Yin Tang takes gan jiang as the sovereign herb precisely to use its acrid, warming power to melt and disperse the cold fluid congealed in the chest. He could dare to use gan jiang in such quantity because his diagnosis was accurate — this was cold fluid, not a heat pattern, and gan jiang was exactly the right herb.
Three doses, and it worked: the appetite opened, she could eat
The prescription was given, and after three doses this woman’s appetite opened — she felt hungry, and could eat again.
💬 Note from Doctor Luo: You see — three doses, and the eating problem was solved first. What does that tell us? The moment the cold fluid in the chest dissolved and the qi mechanism moved freely, the spleen and stomach functions recovered — and the appetite came back on its own. The root was the cold fluid, not the appetite itself.
Finishing touches: adding one herb — sheng huang qi — to tonify the qi, and a dozen-plus doses cured her
Her appetite had opened, but her breathing still felt somewhat weak. So Doctor Zhang Xichun added sheng huang qi (raw astragalus) 3 qian (about 9 g) to the formula — what for? To tonify the qi. She continued for a dozen-plus doses, and the patient recovered.
💬 Note from Doctor Luo: Folks — a critical patient that doctor after doctor had failed to cure, and Doctor Zhang Xichun set it right in a dozen or so prescriptions. Why? Two reasons. First, accurate diagnosis — he was not fooled by appearances: the moment he saw shortness of breath with thin, clear phlegm, he seized on the core issue, cold fluid. Second, step by step — first dissolve the cold fluid and open the appetite, then tonify the qi to restore her strength. The logic was crystal clear, and the medicine took effect right away.
Doctor Luo’s closing notes: many people today have insufficient yang and heavy dampness — cold fluid deserves serious attention
What does this case remind us of? Many people today carry very heavy dampness in their bodies, together with insufficient yang. How did it come about? For example, past medication that was too cooling or used too heavily; or constantly drinking iced beverages — after the spleen and stomach are injured, yang deficiency sets in.
💬 Note from Doctor Luo: When yang is insufficient, water-dampness stays in the body and blocks the movement and transformation of qi. So some people wheeze — the qi mechanism cannot run freely, and breathing feels tight and oppressed; some people’s bellies distend — eat a little something cold and the belly swells up; then appetite decreases, and the appetite gets worse and worse. In all these situations, you should suspect cold fluid.
If cold fluid is truly diagnosed — especially after a Chinese medicine practitioner confirms it — gan jiang (dried ginger) and Doctor Zhang Xichun’s Li Yin Tang are excellent ways to regulate the condition. Folks, this is the lesson we should take away from this case record.
💬 Note from Doctor Luo: Above all, remember today’s distinguishing point: phlegm that is thin, white foam, or pale like water, or clear and translucent like raw egg white — that kind of person deserves serious attention. This is not heat — it is cold fluid! That’s all for today; tomorrow we’ll continue with more of Doctor Zhang Xichun’s insights on using gan jiang.
Arranged from Doctor Luo Dalun’s commentary on Doctor Zhang Xichun’s case records; the case comes from Records of Chinese Medicine with Reference to the West (《医学衷中参西录》), published in installments 1918–1934.