Diarrhea Every Time the Wind Blows? Doctor Xue Lizhai Treats Spleen-Dampness Diarrhea with Shengyang Yiwei Tang (Yang-Raising and Stomach-Soothing Decoction)
Patient’s search terms: diarrhea every time the wind blows / chronic diarrhea / diarrhea every single day / food that will not digest and a bloated belly after meals / afraid of cold with a heavy, leaden body
Medical terms: spleen deficiency with exuberant dampness · diarrhea (xie xie) · liver wood stagnation against spleen earth · spleen and lung qi deficiency · wind diarrhea (feng xie)
Opening: a kind of diarrhea that strikes whenever the wind blows
There is a strange kind of chronic diarrhea: you feel perfectly fine at home, but the moment you step outside and the wind hits you — rumble, rumble, your stomach starts churning, a pain grabs you, and you have to find a bathroom and empty out, no question about it. Doctor Luo Dalun says he has seen plenty of patients like this, and there is real scholarship hidden in it — the physicians of ancient times developed a whole way of thinking about this very complaint, and they gave it a famous principle: “wind can overcome dampness” (feng neng sheng shi).
💬 Note from Doctor Luo: Truly fixing chronic diarrhea takes real skill. A great many people with chronic diarrhea can never seem to cure it no matter what they try. Some of the conditions Western medicine labels as enteritis — ulcerative colitis, for instance — have been placed by the World Health Organization on its list of diseases that cannot be cured, and some of these illnesses genuinely are extremely hard to treat. What we are going to talk about today is a small case record from Doctor Xue Lizhai. The case is very short, but the principle behind it runs very deep.
Who was the patient: a Grand Master of Splendid Happiness with a tiny appetite and endless stomach trouble
The patient’s surname was Yang, and his title was Guanglu Dafu (Grand Master of Splendid Happiness) — a very senior official rank indeed. Doctor Xue Lizhai noted that he was constitutionally weak in original qi (yuan qi) — that is, his upright qi was inherently more deficient than an ordinary person’s from the start.
What were his symptoms when he came for treatment? First, food that was hard to digest — whatever he ate never seemed to break down properly. After a meal he would feel blocked up, bloated and uncomfortable; and because his stomach was so full of stuck food, he could hardly face the next meal, so his appetite was tiny — a little food, and he was bloated again. Second, unceasing diarrhea — he had loose stools every single day, a chronic diarrhea that would not stop.
💬 Note from Doctor Luo: A small appetite plus bloating after meals tells you the spleen and stomach are weak and lack the power to transform and transport. And if you have chronic diarrhea, never underestimate that signal — “I feel bloated after meals.” It and the diarrhea usually share one single root: spleen deficiency.
Breaking down the symptoms: chills, a heavy body, aching joints — all signals of heavy dampness
Keep reading, and the man’s troubles go on and on. Scanty urine — he passed very little urine. Why? Doctor Luo explains: all the water is leaving through the large intestine, pouring out as diarrhea, so the fluids in the small intestine naturally run short and the urine becomes scanty. Chills at the slightest breeze — a little wind, and suddenly goosebumps race over his skin and he starts to feel cold, never quite warm — that is a sign of insufficient yang qi. And then a heavy body with aching joints — his body felt terribly heavy, and his joints ached a little as well.
💬 Note from Doctor Luo: A heavy, leaden body and aching joints are the classic presentation of heavy dampness — when dampness bogs down the surface of the body and between sinews and bones, a person feels as if lead has been poured into him. So look at this gentleman’s overall state: insufficient upright qi, a weak spleen and stomach, insufficient yang qi, heavy dampness. When Doctor Xue Lizhai names his formula later, every one of these symptoms will line up perfectly.
Doctor Xue Lizhai’s verdict: spleen and lung deficiency, with heavy dampness
After examining the patient, Doctor Xue Lizhai said: “I consider it spleen and lung deficiency” — the upright qi of both the spleen and the lung was insufficient. With the spleen weak, transformation and transport lose their power; and since the lung governs qi, when lung qi is insufficient the defensive qi (wei qi) at the body surface cannot hold firm — which is why the patient felt cold. And the dampness was so heavy precisely because the root was spleen deficiency.
💬 Note from Doctor Luo: When you treat the spleen and stomach, or treat diarrhea, the worst thing you can do is fixate on a single idea. Some patients look like yang deficiency, so doctors warm the yang for a long time — and it does not necessarily get better. Others look like damp-heat — the diarrhea is yellow-brown, the belly aches — so they clear damp-heat for days, and a few days later it comes right back. Why? Because mixed cold and heat is extremely common in diarrhea, which is why we often turn to the thinking of Wumei Wan (Mume Pill) and regulate cold and heat together. This particular patient — body afraid of cold, heavy, with aching joints — was primarily spleen deficiency with heavy dampness, and the direction was clear.
The prescription: Shengyang Yiwei Tang — a formula from Doctor Li Dongyuan
The formula Doctor Xue Lizhai prescribed is called Shengyang Yiwei Tang (Yang-Raising and Stomach-Soothing Decoction). Where does it come from? Doctor Luo says: however much we go on, we keep coming back to Doctor Li Dongyuan. Li Dongyuan was the founder of the school of strengthening the earth (the Earth being the spleen), and his formulas influenced later generations enormously. Doctor Xue Lizhai used Buzhong Yiqi Tang (Tonifying the Middle and Replenishing Qi Decoction) very often; this Shengyang Yiwei Tang is also a Li Dongyuan formula, collected in his Clarifying Doubts about Internal and External Damage (Neiwai Shang Bianhuo Lun).
💬 Note from Doctor Luo: Li Dongyuan designed this formula specifically for “damp-heat lingering in the middle burner”: the person is lazy and sluggish, without strength; the limbs sag; the body feels heavy; the joints ache; there is a bitter taste and a dry tongue; food loses its flavor; bowel movements are irregular; urination is frequent; and gradually lung symptoms appear — fear of cold, even constant unhappiness and a tendency to weep. Compare that with today’s Grand Master of Splendid Happiness — the symptoms are almost identical.
How to read the formula: astragalus leads the main line, with the Six Gentlemen as the foundation
The heaviest-hitting herb in this formula is huang qi (astragalus root). Huang qi tonifies qi gently and evenly — not as fierce as ginseng — and it both strengthens the center and acts on the body surface, so when the qi mechanism is stuck both inside and out, huang qi works especially well. Huang qi leads the main line, and beneath it is the Sijunzi Tang (Four Gentlemen Decoction) — ren shen (ginseng), bai zhu (atractylodes), fu ling (poria) and gan cao (licorice) — which tonifies the spleen and drains dampness. Add chen pi (aged tangerine peel) and ban xia (pinellia) to move qi and eliminate dampness, and you have the Liujunzi Tang (Six Gentlemen Decoction) — the foundation layer of this formula.
💬 Note from Doctor Luo: Huang qi was first used by Zhang Zhongjing, but it was Li Dongyuan who lifted it to such a high position — Buzhong Yiqi Tang and formulas like it all feature huang qi as the sovereign herb. The later physician who learned this best was Doctor Zhang Xichun; his Shenxian Tang (Ascending the Departed Qi Decoction) and similar formulas lead with huang qi as well. This formula also includes bai shao (white peony root) — it restrains yin, harmonizes the nutritive and defensive qi, and softens and restrains the liver. Why peony? Because the root of the illness lies in liver qi stagnation; peony can soften the liver and hold it in place. Then ze xie (alisma) works with fu ling to drain water and push the dampness out through the urine. The front half of this formula, in short, is the strategy of tonifying the spleen and eliminating dampness.
The single most important stroke in the whole formula: four wind herbs
But the most essential part of the formula is the last four herbs: qiang huo (notopterygium), du huo (pubescent angelica), fang feng (siler root) and chai hu (bupleurum). In Chinese medicine these are called wind herbs (feng yao). When Doctor Luo taught Li Dongyuan he devoted a whole lesson to wind herbs, and they have at least three functions. First, they open the interstices (cou li) so dampness can be pushed out of the body. Second, they raise the yang upward — huang qi has brought the qi in, but something must carry that qi upward; chai hu and sheng ma (cimicifuga) are precisely for this, lifting the sunken yang back up. Third, they soothe the liver and resolve stagnation — you are depressed, are you not? The wind herbs open up the stagnation, and once the qi mechanism flows freely, the liver qi relaxes.
💬 Note from Doctor Luo: The wind herbs have a fourth function, and it is the most wonderful of all — wind can overcome dampness. The ancients said that when the mud of the earth is sodden and wet, you need a windy day to dry it out. So using wind herbs to disperse wind and move qi increases the permeability of the qi mechanism inside the body, and the dampness comes off all the more easily. That single stroke is the soul of this formula.
Wind overcomes dampness: why can wind herbs treat diarrhea?
Using wind herbs for diarrhea is something later physicians learned from these ancient ideas. People noticed that those with diarrhea often have their stomachs rumbling and gurgling — qi scurrying about inside as if there were a wind blowing in there. And Doctor Luo’s own experience matches this — many people with chronic diarrhea, the moment they step outside and the wind blows on them, immediately get a stomachache, the rumbling starts, and the diarrhea follows.
💬 Note from Doctor Luo: Wind affects the body surface; the moment the nutritive and defensive qi of the surface are disturbed, the lung feels it at once — and the lung and the large intestine are interiorly-exteriorly paired, so the connection is real. The late Grand Master of Chinese medicine, Ding Guangdi, treated exactly this kind of illness by drawing on the wind-herb experience of the Jin-Yuan physicians. When he met this presentation, he used wind herbs to regulate the diarrhea, and it worked. Wind overcomes dampness — if the dampness is so heavy it has nowhere to run and keeps pouring out as stool, then I will use wind herbs to disperse it.
Doctor Xue Lizhai’s commentary: separating fluids and tonifying the center both fail? — liver wood stagnating against spleen earth
At the end of the case, Doctor Xue Lizhai appends a commentary, and it is the eye of the whole case: “Whenever diarrhea does not respond to formulas that separate the fluids or tonify and regulate the center, this is liver wood stagnating against spleen earth. In such cases you should use the yang-raising, stomach-soothing formula, and rapid and complete recovery follows.”
What does that mean? Separating the fluids means separating the urine from the stool — when the stool is watery and the urine is scanty, the body’s water distribution is uneven, so you promote urination to firm the stool, tipping the water toward the small intestine; with less water in the stool, the diarrhea gradually settles. Tonifying and regulating the center means tonifying the spleen. If you have tried both separating the fluids and tonifying the center without response, then you must consider: this is liver wood stagnating against spleen earth.
💬 Note from Doctor Luo: “Liver wood stagnating against spleen earth” — those words lay the mechanism completely bare. This patient was a Grand Master of Splendid Happiness, a very senior official — of course his pressure was enormous. He was not the explosive, angry type; he was the type who stews in gloom and frustration day after day, and the emotional knot pressed down onto the spleen earth, throwing the spleen and stomach into disorder. Link by link: poor emotions → spleen deficiency → insufficient upright qi, yang qi unable to rise → lung qi weak as well (and since the lung’s emotion is grief, he became even more unhappy) → dampness arrives → diarrhea. This is especially pronounced just after the long summer gives way to early autumn, when the damp-heat of summer has not fully cleared and people with heavy dampness feel even worse. Li Dongyuan wrote “at this time the autumn dryness qi is in command” — his formula is seasonal, laid out almost in tune with the calendar: early autumn, just after summer damp-heat, is precisely the season when Shengyang Yiwei Tang is most right. So you must use the yang-raising, stomach-soothing formula, lift the yang up, and only then will you see results.
Other approaches to chronic diarrhea — the story of Doctor Zhang Jingyue giving up alcohol to tonify the kidneys
After finishing this case, Doctor Luo Dalun strings together several approaches to chronic diarrhea. The kidney-deficiency type covered yesterday is another large category, and a very common one. The famous Ming-dynasty physician Doctor Zhang Jingyue once suffered from diarrhea himself; he treated himself for a long time and could not fix it. How did he finally recover? By tonifying the spleen and tonifying the kidney. He used to love his liquor, so he gave it up, regulated himself slowly, and at last got well.
💬 Note from Doctor Luo: The Huangdi Neijing (Yellow Emperor’s Classic of Internal Medicine) says “the kidney is the gate of the stomach” — the gateway of the stomach lies in the kidney; how well the spleen and stomach function is directly tied to whether your kidney qi is sufficient. That is the broad strategy. The specific approaches are many: for mixed cold and heat, use Wumei Wan to regulate cold and heat together; for kidney deficiency, tonify the spleen and kidney; for the spleen-deficiency-with-heavy-dampness case like today’s, use Shengyang Yiwei — tonify the spleen, remove dampness, and add wind herbs, which both overcome dampness and soothe the liver, opening the qi mechanism so the stagnation does not re-form. Learning treatment strategies is a matter of slow accumulation — the more cases you see, the better you know what to do in each situation.
What to take away
A case record only a few lines long, yet it hides one of the most beautiful tricks in two thousand years of Chinese medicine: when dampness is so heavy it has nowhere to go, borrow the power of the wind to blow it dry. Doctor Xue Lizhai’s “liver wood stagnating against spleen earth,” Doctor Li Dongyuan’s Shengyang Yiwei Tang, four wind herbs gently stirring — the yang rises, the stagnation opens, the dampness disperses, and the diarrhea naturally stops.
If chronic diarrhea keeps returning no matter what you try, remember this roadmap: separating the fluids did not work, tonifying the center did not work — think of liver wood stagnating against spleen earth, and of wind herbs that dry dampness and soothe the liver at the same time. And above all, do not read a case like this as a prescription to copy; read it as a way of seeing — the way to see the wind that is blowing inside your own body.
Compiled from Doctor Luo Dalun’s lecture explaining the case records of Doctor Xue Lizhai; the cases are from Xue’s Case Records (《薛氏医案》).