Baby Vomiting and Diarrhea from Cold: Zhang Jingyue Treats His Own Son with a Sweet-Tasting Decoction
Patient’s search words: baby vomiting and diarrhea / child diarrhea from cold / vomits right after milk / infant spitting up milk / can’t get the child to take medicine Medical terms: infant vomiting and diarrhea (from cold / cold damage) · spleen-stomach deficiency cold · weak stomach qi
Opening: even a famous doctor’s son was sick to the brink of death
Doctor Zhang Jingyue, one of the great names in the history of Chinese medicine, is not exactly starting this story in glory — the child lying there fading away was his own youngest son.
💬 Note from Doctor Luo: When you hear this you’ll understand at once: a famous doctor treating his own child is not so different from any of us parents — just as anxious, just as stuck, just as tearful. This case is special because it’s Zhang Jingyue’s record of treating his own child. Trust me — treating your own child is a feeling you never get used to.
Who was the patient? A six-month-old baby born in the first lunar month
The little boy had been born in the first lunar month at Yandi — the name of Zhang Jingyue’s residence in Beijing at the time, before he returned to his hometown in Zhejiang. By the White Dew solar term, he was just six months old.
💬 Note from Doctor Luo: Note the timing: born in the first lunar month, six months old at White Dew — exactly the turn from summer into autumn, when the weather starts to cool. Season is the first key to this case.
The cause: thin bedding as the weather turned cool, and no one took it seriously
Day by day the weather grew cooler. Zhang Jingyue noticed the baby’s bedding was a little thin. Worried that the little one would be invaded by cold, he told the household: “Wrap him up properly, don’t let him get chilled.” The response? His wife didn’t take it seriously at all — “It’s fine, it’s fine.”
A few days later, disaster: the child began vomiting and diarrhea violently, throwing up and purging at the same time.
💬 Note from Doctor Luo: Vomiting and diarrhea can indeed come from spoiled food — contaminated food, pathogens entering the gut. But look at this child: he was still on milk, maybe a little congee. Hard to say he ate something bad, right? So Zhang Jingyue knew in his heart: this was cold. This kind of cold-induced vomiting and diarrhea is extremely common. When I was little in the northeast, it happened almost every year — dress too lightly, catch a chill, and the stomach pain was unbearable: run to the toilet a little, run again, never feeling empty, sometimes vomiting too — mostly the pain was the worst part. Back then my mother had no idea what it was and even needled my Zusanli (ST36)! Only when I grew up did I learn that Fu Zi Li Zhong Wan (Aconite Center-Regulating Pill) was the answer for this situation. Ancient southern China rarely got this cold, but today we have air conditioning, so cold-induced vomiting, diarrhea and stomach pain are everywhere again.
How sick did he get? He threw up whatever he drank — not a drop of medicine stayed down
Zhang Jingyue first prescribed a warming-stomach, harmonizing-spleen formula — no effect. Then Li Zhong Tang (Center-Regulating Decoction) and similar formulas — still no effect. After three days he added 9 g of ginseng, plus warming herbs like dried ginger, cinnamon bark, evodia fruit (wu zhu yu) and nutmeg (rou dou kou) — by all rights it should have worked, yet nothing changed.
By the fourth or fifth day, the child was in the state recorded as “milk follows vomiting; he vomits half and purges half”: half of every feeding came up, half went down as diarrhea. As for the medicine — nothing stayed in his belly. Whatever he drank came right back up, so the herbs never had a chance to work.
Zhang Jingyue had no choice but to go heavy: ginseng at 15–18 g — 18 g is already a lot — with prepared aconite (zhi fu zi), roasted ginger, dried ginger, cinnamon and so on, one or two qian (3–6 g) each, decocted and forced down. The result: down the throat and straight back up — not one drop remained. The medicine came up first, and what came out below was pure milky-white milk.
At this point the baby was wilting: his constitution and qi were both nearly gone — the outlook was close to zero.
💬 Note from Doctor Luo: When a tiny baby is knocked about by this kind of vomiting and diarrhea, nutrition can’t get in, and it genuinely becomes dangerous — sometimes the neck goes limp, and then it’s really critical. Imagine what a father feels watching that happen.
The famous doctor at his wit’s end: sitting in the study, in tears, until midnight
Zhang Jingyue later wrote in his book that that night he “sat in his study, silent, in tears” — alone, thinking over and over about what was really wrong with this disease. At this stage of his life he was still accumulating experience; it was precisely this kind of relentless reflection that sharpened his skill.
💬 Note from Doctor Luo: The more I read Zhang Jingyue’s books, the more I respect him as an honest man. Most famous doctors write about their triumphs: I opened a formula, one dose cured it. Zhang Jingyue wrote down his most humiliating moments — he gave his own son medicine and it didn’t work, and it tore him up. The scene he recorded is no different from any ordinary parent’s experience. Treating your own child really does hit differently. In the Republican era, Shanghai had a famous warming-school (Fire-God school) physician named Zhu Weiju (祝味菊), who went through exactly the same thing — with the son of Xu Xiaopu, another famous Shanghai pediatrician. The boy had caught cold damage (shang han); the warm-disease approach didn’t work, and the child only got worse until he was unconscious. Zhu Weiju wrote a formula, and Xu Xiaopu pretended to give it — and the child went critical. Zhu Weiju rushed over: the room was full of doctors, the child unconscious and convulsing, medicine couldn’t even be poured in — it came right back up. Zhu Weiju pulled Xu Xiaopu aside and asked, “Will you give my medicine a try?” Xu Xiaopu, in tears, said, “If you can cure him, I’ll be forever grateful.” Zhu Weiju prescribed aconite and other warming, yang-raising herbs. After the medicine went down, Xu Xiaopu paced his study weeping; a moment later a servant burst in shouting “Master! Master!” Xu Xiaopu blurted out, “When did my son pass?” — he thought the boy was gone. The servant said: He’s awake! They ran in — the child had regained consciousness and wanted to eat. He took more medicine and recovered from there. Zhu Weiju told this story in detail years later to his disciple Chen Susheng. When the boy recovered, Xu Xiaopu took down his own plaque reading “Famous Pediatrician,” carried it to Zhu Weiju, and knelt to beg: “I called myself the famous pediatrician of Shanghai, yet I couldn’t cure my own son. You cured him with one formula — how can I keep that title? Let me become your disciple.” Zhu Weiju quickly lifted him up: “We’re brothers — that generation is wrong. Give me your two sons instead.” Later Xu Xiaopu studied with him, often prescribing warming herbs like aconite, cinnamon and dried ginger, and both of his sons went on to become famous Shanghai pediatricians. You see — even a pediatric master treating his own son was in tears.
The midnight insight: the direction wasn’t wrong — the medicine was just too foul-tasting
Zhang Jingyue turned the problem over and over in his mind: this had to be cold invading the stomach with unending vomiting and diarrhea. Without ginseng, dried ginger, cinnamon and aconite, no other medicine would do — but if the direction was clearly right, why didn’t it work? He was, in his own words, “at the end of my rope.” Could the ancients have deceived him? Was Chinese medicine useless?
Then, at midnight, it suddenly came to him: the child’s stomach was empty-weak — so weak that if the smell or taste of a medicine was even slightly off, the stomach rejected it and out it came. What was needed was a medicine with a pleasant smell — sweet, with a hint of spice — that the child would accept, so the stomach could actually receive it and the herbs could slowly do their work.
Here comes the clever trick: crush 300 black peppercorns, add 30 g of roasted ginger (wei jiang) — a good amount of ginger — boil in two cups of water down to eight-tenths, and set aside. Then take 60 g of ginseng, boil in two cups of water down to one cup, and set that aside too. Now mix ten parts ginseng decoction with one part pepper-ginger decoction (a 10:1 ratio) — the flavor is sweet with just a touch of spice, actually pleasant — keep it warm in hot water, and feed it to the child slowly, sip by sip.
It worked!
💬 Note from Doctor Luo: Now do you see why nothing had worked before? Those decocted formulas smelled awful — evodia fruit, nutmeg, ginger, cinnamon. Even adults hold their noses to drink that stuff. How could a baby accept it? Some children today take one mouthful of Chinese medicine and vomit, and refuse it forever after — the decoction is brewed and given to an infant who truly cannot accept it; sometimes it’s not reluctance, the organs genuinely reject it, so up it comes. Zhang Jingyue’s move here was “make sweetness the master” — changing the smell and taste of the medicine to go along with the stomach’s qi. You could also use yam congee or yam powder made into a paste — that’s sweet too, and it works the same way.
The scare in the turnaround: after 60 g of ginseng, the baby suddenly grew restless
From morning on, the medicine went in steadily. By noon, ginseng totaling 60 g — a very large amount — had been given. The child stopped vomiting; milk and medicine both stayed down. But the diarrhea had not yet stopped.
Then, all at once, the baby grew restless and irritable. The household erupted: a baby so delicate — how could he withstand such hot medicine? “You must have burned his intestines through — that’s why he’s fussing!” The family clung together and wept.
💬 Note from Doctor Luo: Famous-doctor households are like this too — the family blamed Zhang Jingyue: “You gave him all that ginseng; can he take it? You’ve burned his guts out!” I used to find this part of the case funny. Zhang Jingyue was honest enough to write down these embarrassing family scenes — most famous doctors never would. And my family is the same: whenever my mother has any ailment, she never comes to me first — she goes hunting for “miracle cures” in newspapers and TV ads, secretly trying them, getting more and more tangled, and only comes to me when it’s serious. Years ago my mother’s leg hurt; she tried everything, couldn’t even stand, ended up in a wheelchair. Finally, with no options left, she came to me. I applied some herbal powder to the leg, wrapped it in plastic film, and it healed quickly — now she dances every day. What Zhang Jingyue wrote is what an honest man actually went through.
The truth revealed: he wasn’t burned — he was hungry!
Zhang Jingyue refused to be shaken. He calmed his mind and thought hard: if the medicine were wrong, why had the child taken it fine earlier and only now grown restless? — It must be that after days without proper food, now that the upright qi was reviving, the granary was empty — there was nothing in the stomach. The child was hungry!
He had congee ready. The moment the bowl came, the baby cried out and lunged for it — the records say “a strange sight indeed, he scrambled for it desperately.” First a small bowl: the little fellow wolfed it down like a tiger, eyes still fixed on the rest. Then half a bowl more; still not enough. Another half bowl. When he finished, he was calm, and drowsy, and went to sleep.
The next day Zhang Jingyue added a little prepared aconite, and the diarrhea stopped completely — full recovery.
Review: the qi of the organs is tied to the back — cold entered through the back
Zhang Jingyue sighed: “Alas! This child has been reborn!” The great ordeal was over. He said there is such a thing as fate, but causes should still be analyzed: the qi of the internal organs is connected to the back. In autumn, in the cold north, with thin bedding, the nighttime chill entered through the acupuncture points on the back (shu points), striking deep into the organs.
💬 Note from Doctor Luo: I have personal experience with this. When I was little it happened once a year — dress too lightly in the cold, get chilled in some spot, and this kind of cold damage would come on: vomiting and diarrhea together, mostly terrible stomach pain. It’s especially common in the north, and in people with weak yang qi. My parents had me very late in life, so I was born with weak constitutional endowment and was often sick as a child — I know this deeply. Cold can also enter from the front — sleeping uncovered with your chest exposed and the temperature dropping overnight will do it too. And then there’s the second lesson, about method: the medicine was right, but if its smell and taste don’t match the patient’s ability to accept it, it can’t get in — and then how could it work? Impossible.
Zhang Jingyue added one more honest remark: this was his own child, so he dared to use 60 g of ginseng. With an outside patient, the moment the child grew restless and the medicine seemed to fail, everyone would have attacked him and refused further treatment — no one would have thought of the porridge, of the child simply being hungry. If he had quickly changed the formula, seen the diarrhea as heat, and switched to bitter-cold herbs, this child would have died. He recorded the whole affair “to widen people’s knowledge” — so that when others meet the same problem, they have the understanding not to panic.
Note from Doctor Luo: tell cold from heat — don’t treat cold-induced vomiting and diarrhea with cooling herbs
💬 Note from Doctor Luo: What do we learn from this case? Vomiting and diarrhea can indeed come from spoiled food or damp-heat — for those you may need heat-clearing, toxin-resolving herbs like huang lian (coptis), huang bai (phellodendron) or bai tou weng (pulsatilla). But you must first distinguish cold from heat. When you’ve caught a chill you know it: sleeping with your belly exposed to the air conditioner all night, waking up with stomach pain, vomiting and diarrhea — miserable. A lot of young people do this today: AC on all night, sleeping in a thin vest, blanket kicked off — fever, vomiting and diarrhea, back pain, all sorts. Be careful with this. When I was a teenager I had it three years in a row, once each year, which is why after studying medicine I pay special attention to warming yang — at times like this, Fu Zi Li Zhong Wan (Aconite Center-Regulating Pill) is enough, as long as it can be swallowed; combine it with some dried-ginger water and a warm foot soak to let the body recover.
Bonus: prevention — build up your yang qi in daily life
💬 Note from Doctor Luo: For prevention, do your best not to get chilled, and protect your yang qi. Moxibustion from time to time, using various methods to restore and support yang — that is the body’s defense strategy. Don’t wait until the pain hits to think about warming yang; keep your yang vigorous at all times and steer clear of cold pathogens. And a word about Zhang Jingyue himself: reading this case, we meet him on a deeper and fuller level — an honest master who organized his books superbly, who recorded his own emotional journey: “I grew this way too — when my child was sick at first, I cried too.” A doctor like this truly deserves our admiration.
A six-month-old baby, chilled into violent vomiting and diarrhea, threw up everything he drank and nearly slipped away — and in the end it was won by a bowl of sweet, slightly spicy medicine the child would actually drink, finished off with a bowl of warm congee. The right formula matters, of course — but if a child can’t get it down, none of it matters. That, perhaps, is what Zhang Jingyue wanted to tell every parent: to cure a child, first you have to get the child to swallow.
(Adapted from Doctor Luo Dalun’s lecture on Doctor Zhang Jingyue’s case; the case is recorded in The Complete Works of Jingyue (《景岳全书》))