Dry Cough in Autumn? What to Do

What people search for: autumn cough / dry cough / autumn dryness cough / dry throat / cough with blood-streaked sputum / dry stool / diarrhea / fever with chills

In medical terms: autumn dryness (warm dryness · cool dryness) · dryness injuring the lung · fluid deficiency · the lung and large intestine are paired (biao-li)

Opening scene: how did a small autumn cough end up “at death’s door”?

In the late Ming and early Qing, a flustered husband arrived at the home of Doctor Yu Jiayan, the celebrated Jiangxi physician. His surname was Wu, styled Jichang — Wu Jichang. His wife was ill, and dangerously so: she could not eat, she coughed without making a sound, her bowels ran and ran, and she was plainly about to go.

Yet this illness had started as lightly as could be: at the very beginning of autumn, she felt cold — a thin, creeping chill — then began to run a fever, then gradually developed a cough. Nothing more than that.

💬 Note from Doctor Luo: Everyone, take note — this is what the classics call saxi ehan (洒淅恶寒): that shivery cold when a cold wind blows and your skin tightens and the hairs on your arm stand up. A small autumn cold, caught before the body had adjusted to the season, was eventually treated into a critical condition. The problem was not the illness — it was the medicine. This is the famous case from Doctor Yu Jiayan’s Yu Yi Cao titled “On the Mistaken Treatment of the Lung Illness of Wu Jichang’s Wife and the Woman Wang” — the story of two women ruined by the same kind of error.

First mistake: treated as a cold — sweating herbs only made her weaker

The Wus called in a doctor. He felt the pulse: a cold invasion! So he wrote out exterior-dispersing, sweat-inducing herbs to scatter the cold and release the exterior.

The result? No improvement. She kept taking them, and her body only grew weaker and weaker. And so the whole autumn slipped by.

By early winter, the doctor reconsidered: since releasing the exterior was not working, let’s tonify instead — ginseng and atractylodes, warm, strengthening herbs.

The result? At death’s door, unable to take food or drink. Her spirit sank lower and lower, her cough had no voice behind it, and her bowels ran without stopping. Now the doctor panicked too, and the family debated pouring on even more heat: ginseng, aconite, fresh ginger, cassia twig, atractylodes — warm the yang, stop the diarrhea, one last stand.

💬 Note from Doctor Luo: Do you see it? The first round of sweating burned away her fluids; this round piled on ginseng and aconite — the direction was completely backwards. The patient had a ball of dry heat inside her. The more you warmed and tonified, the hotter it burned. Wu Jichang was at his wit’s end, and finally clenched his teeth: send for Doctor Yu Jiayan!

The famous doctor arrived, finished the exam, and walked out: Doctor Yu left in a huff

Doctor Yu Jiayan came, examined the pulse carefully, and finished his diagnosis. He was just about to speak when the previous doctor walked in from outside — and the moment he saw Yu Jiayan: “Oh, you’ve come! Write the prescription quickly, quickly!”

Doctor Yu Jiayan took one look at the situation — you treated this woman into this state, and now you won’t even let me speak, just push me to write a prescription? Without a word, he drifted out the door.

💬 Note from Doctor Luo: This moment shows real character. Doctor Yu wasn’t sulking — he knew that arguing would be pointless. With the previous doctor standing right there, refuting his prescription would be a public slap in the face, and there was no way to practice medicine in that scene. Wu Jichang understood too. He went home, dismissed the previous doctor, and came back to beg respectfully: “Sir, you prescribe the medicine — I will do everything you say!”

First, the theory: autumn illnesses come in two kinds — “cool dryness” and “warm dryness”

Only then did Doctor Yu Jiayan speak: “This illness was caused by the wrong medicine. It began simply as the lung channel being injured by the dryness of the season — this is what we call autumn dryness (qiu zao).”

What is autumn dryness? Summer is hot, and late summer is damp. When autumn arrives, the dampness disperses — the sky is high, the clouds are thin, the air is crisp and clear, and the moisture in the air drops sharply. People’s fluids withdraw too; we no longer sweat the way we did in summer. So when autumn comes, your mouth is dry, your nose is dry, your skin is dry, and your stools tend to bind — that is autumn dryness.

But autumn dryness comes in two kinds. Doctor Yu explained it carefully to Wu Jichang:

💬 Note from Doctor Luo: Within a single day, morning and evening are cool — once the sun goes down and the wind blows, goosebumps come up. If you are struck by evil at this time, it is cool dryness: coughing, with white or greenish phlegm, a clear runny nose, and chills. The treatment is to warm the yang and scatter cold, plus a little moisture-nourishing medicine. At noon, the autumn sun beats straight down with nothing to block it — dry and scorching hot. If you are struck then, it is warm dryness: dry nostrils, dry throat, cough with blood-streaked sputum, yellow phlegm (scanty, clumped into lumps), a red tongue with a very thin coating, and body heat. The treatment must not release the exterior — instead you nourish yin and moisten dryness: use E Jiao, Mai Dong, Tian Dong and other moistening herbs, plus a touch of clearing for deficient heat.

Across the whole autumn: at the beginning of autumn, when it has just turned cool and the body hasn’t adjusted, cool dryness predominates. By mid-autumn, when the sun is blazing hot and the fluids have already withdrawn considerably, warm dryness predominates. The two treatments are exactly opposite. Get them mixed up, and you treat the illness in reverse.

Doctor Yu’s diagnosis: the root was not cold — it was “lung heat trapped inside”

Doctor Yu said that Wu’s wife had originally been struck by warm dryness. But how did the doctors treat her? As a cold, with sweating herbs to release the exterior — when there were no fluids to spare in the first place, and sweating only injured the body further.

Worse, they then used ginseng and atractylodes to warm-tonify — when the body’s fluids are insufficient, adding warm, hot-natured medicines is like lighting a fire on dry kindling. What happened?

The lung qi was sealed off — that is why she coughed without a sound. A mass of lung heat had nowhere to vent and was trapped in the chest — that is why her chest and belly were distended and full, and she could not eat. The heat, bottled up inside, had to find an exit — and the lung and the large intestine are paired (biao-li). Lung heat rushed straight down into the large intestine: food was expelled before it could be transformed and transported, and even the old residue stored in the intestines came out with it. That is the reason for the endless diarrhea.

💬 Note from Doctor Luo: In one sentence: the lung heat above drained out through the intestines below. So the wife’s diarrhea looked like spleen deficiency, but it was actually lung heat — using ginseng and aconite to stop the diarrhea was pouring oil on the fire. Also remember: the lung is a delicate organ (fei wei jiao zang) — it fears cold, it fears heat, and it fears dryness. The moment it dries out, all kinds of pathology appear — cough, chills and fever. The lung governs the skin and body hair (fei zhu pi mao), so everything on the body’s surface answers to it; when the lung is in trouble, the body naturally runs hot.

The prescription: five herbs to clear the lung, direct qi downward, and moisten dryness

Doctor Yu Jiayan was completely confident: “Use herbs that moisten the lung and, through that, moisten the intestines — clear both the source and the stream. The chills and fever, the cough, and the diarrhea will all stop together. After four doses it will basically be settled. Don’t worry.”

The prescription? Extremely simple — Huang Qin (Scutellaria root), Di Gu Pi (wolfberry root bark), Gan Cao (licorice), Xing Ren (apricot kernel), and E Jiao (donkey-hide gelatin), just these few.

💬 Note from Doctor Luo: Let’s break it down. Huang Qin and Di Gu Pi clear lung heat — whether the heat turned from cold or was contracted directly as warm dryness, there is heat now, so clear it first. Xing Ren directs the lung qi downward — in autumn the qi of heaven descends and contracts, and the body must correspond; Xing Ren brings down the lung qi that was trapped up above, and it also stops cough. Gan Cao harmonizes the center and stops cough. E Jiao moistens the lung — this one is indispensable; it specifically replenishes the fluids of the lung. Clearing heat — done. Directing qi downward — done. Moistening dryness — done. Complete.

And the result? After one dose, the diarrhea began to stop — the heat inside was cleared, so it no longer forced the qi to drain outward. After four doses, both chills and fever were gone. After a few more doses, the cough was cured. A patient who had gone from autumn to winter growing worse with every treatment was pulled back with just a few doses.

E Jiao: more than just “donkey-skin protein”

At this point in the case, Doctor Luo Dalun paused to talk about E Jiao.

💬 Note from Doctor Luo: Some people who oppose Chinese medicine say: isn’t E Jiao just donkey skin? It’s just protein — no different from pig skin or eggs — so it has no value. That’s wrong. If it were merely protein, then when a woman’s period comes, eating an egg does nothing, but taking E Jiao can stop bleeding. When you are dried out to the extreme, other proteins don’t help, but E Jiao genuinely moistens. E Jiao’s effect of nourishing yin and moistening dryness is real — it is a fine, everyday medicine. It’s only that speculation has driven its price so high that people now think of it as some rare treasure.

Its pedigree is impressive: Zhang Zhongjing’s Zhi Gan Cao Tang (the famous formula for boosting both qi and yin) contains E Jiao, and later the warm-disease school’s Qing Zao Jiu Fei Tang (Clear Dryness and Rescue the Lung Decoction) contains it too — that line of thinking began with Doctor Yu Jiayan, and going further back, it was Zhang Zhongjing who laid the foundation.

Doctor Luo’s own experience: an elderly gentleman with a red, cracked tongue felt comfortable within a few doses

After explaining E Jiao, Doctor Luo told a true story from just two days earlier.

💬 Note from Doctor Luo: A good friend of mine’s father coughed all day, said his lung was dry, and felt unwell in all sorts of ways. I said: send me a photo of your tongue. Looking at it — the tongue was very red, with cracks running through it — isn’t that the classic tongue of fluid deficiency with yin-deficiency dryness-heat? So I had him take: Tian Dong and Mai Dong, some E Jiao to moisten the lung, some Ren Shen (ginseng) to support the upright qi, plus a little Sang Ye (mulberry leaf) and similar herbs to clear deficient heat. After taking it, the old gentleman said: oh, this medicine goes down very comfortably! And as he kept drinking it — the cough stopped, his sleep improved, and the dry stools improved too — everything eased. When the theory of Chinese medicine matches the pattern, the medicine works.

The second patient: after the tonic went down, she was unconscious for over ten days

After finishing the case of Wu’s wife, Doctor Yu Jiayan told another case he had seen the same day.

A woman surnamed Wang had also fallen ill with chills and fever in autumn — an exterior invasion. The doctor, likewise, piled on ginseng and atractylodes. The result? At death’s door — except she did not cough. Instead, for over ten days she could not eat a single grain of rice, had no bowel movement at all, and kept fainting away, unconscious.

Her husband hurried to Doctor Yu Jiayan’s home, described the symptoms in full detail, and said: “My wife is terribly deficient — she keeps fainting. Please prescribe some tonic.”

💬 Note from Doctor Luo: Note the contrast — the first patient had diarrhea; this one had constipation. The same mistaken treatment, but one drained out through the intestines and the other dried and bound up inside. Why? In the first case the heat was so fierce that it forced the lung heat out through the gut. In this case, after ginseng and atractylodes, the body was even hotter — the fluids of the intestines were parched and the stool was dry and bound. Once bound, the qi mechanism was thrown into disorder, she couldn’t eat, and the body grew weaker and weaker — what it was burning through was fluids.

The salty “tonic”: two doses, and the woman woke up

Doctor Yu Jiayan was quite a character. Without batting an eye, he said: “Fine. I’ll write you one.” He set down Da Huang (rhubarb), Mang Xiao (Glauber’s salt), Shi Gao (gypsum), and Gan Cao (licorice) — four herbs, ground into coarse powder, handed it over — without a single word of explanation.

💬 Note from Doctor Luo: Da Huang and Mang Xiao are the Cheng Qi Tang (Order the Qi Decoction) line — they purge outward. Shi Gao clears heat. This is exactly Zhang Zhongjing’s urgent purgation to preserve yin (ji xia cun yin): if the dry, bound stool in the intestines is not purged, the more it binds, the more it damages fluids. Purge urgently, and you save the fluids still inside the body. Doctor Yu Jiayan was an expert on the Shang Han Lun, and he used this move with great relish.

The husband took it home and decocted it. His wife drank it: “Oh, this medicine is quite salty.”

The husband’s heart leapt with joy: “Salty is good! Salt enters the kidney — it must be a tonic!” So he had her drink both doses one after the other.

After drinking, the wife’s belly began to hurt; she went to the latrine and passed several hard, bound stools in a rush — and having purged, she revived from the brink of death. She slowly drank two bowls of congee, and that was that — she recovered.

💬 Note from Doctor Luo: Do you see it? The husband thought it was a tonic — it was actually a purgative. But the medicine was right, so the patient got well. That is Doctor Yu Jiayan’s style: precise pattern discrimination, decisive prescribing. In his case records he was exhaustively detailed — the year and month, the complexion’s color and moisture, the alternation of day and night chills and fever, nothing omitted. Even today’s intake forms are not as thorough as his.

Doctor Luo’s warning: bound stool is no small matter

Doctor Yu Jiayan also said something that Doctor Luo deliberately wrote down to warn everyone: this kind of dry, bound stool after mistreated warm dryness is absolutely not a small matter.

💬 Note from Doctor Luo: In the old days in the countryside, I saw this kind of elderly person: stool bound for many days, and then one day — a hard strain, a cerebral vascular accident, and afterwards paralysis. So you must use urgent purgation to preserve yin — quickly purge the heat and protect the fluids. This is what we call pulling the firewood out from under the cauldron (fu di chou xin). This is not some mysterious difficult disease — but if you don’t understand the principles of Chinese medicine and use the medicine backwards, it can turn into a major disaster.

Why was Doctor Yu Jiayan so formidable? The warm-disease school sprouted from him

In closing, Doctor Luo explained where this style of treatment came from.

💬 Note from Doctor Luo: For warm dryness you need cooling, moistening herbs — nourish yin and clear heat. In ancient times this treatment was not commonly understood. When did physicians begin to master it? With this group of late-Ming physicians — Yu Jiayan and his peers were among the founders of the warm-disease (wen bing) school. He broke a branch off the Shang Han Lun, called it warm disease, and made it sprout. In the Qing dynasty, physicians like Ye Tianshi grew the warm-disease school into a full tradition, and men like Wu Jutong created a series of famous formulas that have come down to us. So Yu Jiayan is a pioneering figure in the history of warm-disease theory — and a recognized master of pattern discrimination.

Look at these two cases: neither illness was actually serious. An autumn dry cough — use something moistening; even a bit of autumn pear syrup will do. A genuine cool-dryness cold — use a little Zi Su Ye (perilla leaf) to release the exterior and regulate the lung qi, and it settles. But once the pattern discrimination goes wrong, and sweating and warm-tonifying alternate, even a light illness can be treated into a crisis. In Chinese medicine, distinguishing cold from heat, dryness from dampness comes before everything else.

What to take away

1. Autumn cough is not one disease. Cool dryness (morning/evening, clear phlegm and runny nose, chills) needs warming and scattering with a touch of moistening; warm dryness (noon, dry throat and nose, blood-streaked sputum, yellow scanty phlegm, red tongue) needs nourishing yin and moistening — never release the exterior for warm dryness.
2. The lung and the large intestine are paired. Lung heat can drain out as diarrhea, or bind the stool as constipation. Treat the lung — the bowel follows.
3. When fluids are gone, never warm-tonify blindly. Ginseng and aconite on a dry-heat patient is fuel on fire. When the tongue is red with cracks, the answer is moistening — Tian Dong, Mai Dong, E Jiao — with a little upright-qi support.
4. Bound stool in the elderly is dangerous. Urgent purgation to preserve yin (ji xia cun yin) is a real, life-saving strategy — a hard strain on bound stool can trigger a stroke.
5. E Jiao is a real medicine, not just “protein” — it stops bleeding and moistens dryness; it lives at the heart of Zhi Gan Cao Tang and Qing Zao Jiu Fei Tang.

Compiled from Doctor Luo Dalun’s commentary on Doctor Yu Jiayan’s case records; the case comes from Yu Yi Cao (《寓意草》, late Ming).