Sores Down Below, Itchy and Miserable?
💬 A patient’s search words: sores on the private parts / weeping rash in the genital area / terrible itching down below / breaks open the moment I scratch / plus loose stools and a stuffy chest.
In classical Chinese medicine this is called Xia Gan Chuang (下疳疮, genital sores) — damp-heat from the Liver channel pouring into the lower body (肝经湿热下注), or lower burner damp-heat (下焦湿热).
Opening scene: parents, please let the children step away
Doctor Zhu Danxi never fought a battle unprepared. This day, before he even began, he made an announcement: the disease in today’s story is a special one — if you have children with you, please let them leave the room first. Why? Because the illness in question sits in a very private part of the body.
💬 Note from Doctor Luo: Doctor Luo always kindly warns the parents before he starts. Today’s case involves the lower burner and the reproductive system — a rather private disease — so he says it up front: grown-ups, listen on your own.
Who was the patient? Doctor Zhu Danxi wrote two words first
The patient was Doctor Zhu Danxi’s own neighbor — a man in his early thirties, still quite young. But the very first thing Doctor Zhu wrote about him in the case record is wonderfully blunt — “cunning and hot-tempered” (性狡而躁). Cunning — sly and calculating. Hot-tempered — impatient and quick to flare up.
💬 Note from Doctor Luo: That word “cunning” (jiao, 狡) is fascinating. Its original meaning is a little dog — watch puppies play: they feint one way, snap the other, dart left, dart right — alert, clever, full of tricks. That is the state of “jiao.” So calling someone cunning means: many schemes in the head, always calculating, sometimes wary, sometimes suspicious. Of all the ancient physicians whose case records I have read, Doctor Zhu Danxi is the only one who would write a patient’s character down so unflatteringly. He was a straight-talking man who wrote without politeness — he even recorded his neighbor’s personality exactly as it was. And this is not an idle detail: the illness that follows is closely tied to that personality.
What was the disease? Xia Gan Chuang — a lingering sore
The neighbor’s disease was called Xia Gan Chuang — a sore that grows on the genitals, for instance a weeping rash (shi chuang). The term can sometimes point to the chancre of syphilis — but Doctor Zhu Danxi lived in the Yuan dynasty, and syphilis only reached China around the Ming dynasty. So the Xia Gan Chuang in his book should be understood as sores of the genital area caused by lower burner damp-heat (xia jiao shi re).
The disease lingered on, never fully healing — better for a while, then worse again. Then, in early summer, something new was added: he began to have diarrhea, and a mild stuffiness above the diaphragm — a dull, blocked feeling in the upper stomach.
💬 Note from Doctor Luo: Watch closely — this is where the story turns. The neighbor already had genital sores; now, in early summer, he added diarrhea and a stuffy stomach, and he called in another doctor. That doctor took one look: diarrhea, stuffy stomach — yang deficiency! So he prescribed Li Zhong Tang (理中汤, Regulating the Center Decoction) — ginseng (ren shen), dried ginger (gan jiang), atractylodes (bai zhu), plus tangerine peel (chen pi) — some versions even add green tangerine peel (qing pi). In short: a formula to warm the yang and tonify the spleen, with dried ginger as the leading herb. And what happened?
The frightening mistake: two doses of warming tonic — and the man passed out
After just two doses of Li Zhong Tang, the neighbor became “dazed and blocked as if dead” (昏闷若死) — he blacked out, his qi completely stuck, and it took a long while before he gradually came around.
💬 Note from Doctor Luo: The family was terrified, and hurried to fetch Doctor Zhu Danxi. One feel of the pulse, and Doctor Zhu understood at once: both wrists were choppy (se mai) — what does a choppy pulse feel like? Like a light knife scraping bamboo: a faint vibrating roughness, the circulation not flowing smoothly, the pulse very weak. But when he pressed deeper (zhong qu), there was a wiry quality (xian), and the beat was rapid (shu). What does this mean? There was real heat inside — heat hidden deep. The earlier doctor saw a weak pulse, assumed yang deficiency, and tonified: ginseng is powerful, dried ginger is warming and drying. Warmth piled on warmth — and the qi and blood, already not flowing freely, became blocked even worse. The man simply blacked out.
The illusion of the choppy pulse: it looks deficient, but damp-heat is hiding underneath
Here Doctor Zhu Danxi teaches a great principle of Chinese medicine — the illusion of the choppy pulse.
💬 Note from Doctor Luo: Because a choppy pulse is so weak, many doctors touch it and think: “Oh, no strength — deficient!” and start tonifying. But Doctor Zhu Danxi was a master of pulse diagnosis. Pressing deeper, he found wiry and rapid below — heat inside. Doctor Luo says he felt this lesson keenly when he studied kidney disease treatment under the late master Zhao Shaoqin (赵绍琴): many kidney patients are assumed to have kidney deficiency, but press firmly and the pulse is actually quite strong — meaning the lower burner is suffering from damp-heat and blood stasis blocking things up. Lightly pressed, it feels empty, because the qi and blood are not circulating; but tonify the kidney as much as you like, it never gets better. What you should do instead is invigorate the blood, open the collaterals, and add cooling-blood herbs — let the heat slowly seep out from inside, and the disease heals. That is the illusion — how easily it deceives! A choppy, weak pulse does not necessarily mean deficiency. You must look at what lies underneath on deeper pressure.
Where was the root? Hidden in those two words, “cunning and hot-tempered”
Doctor Zhu Danxi’s diagnosis was clear: this was Xia Gan Chuang of a serious degree (此下疳疮之深重者). And where was the root? In those two words at the very beginning of the record.
💬 Note from Doctor Luo: People who scheme constantly, who weigh gain and loss heavily, tend to have flaring Liver fire. A hot, impatient temper is also a sign of Liver fire. Liver fire blazing → damp-heat in the Liver channel (gan jing shi re). And where does this damp-heat go? According to the channels, the Liver channel winds around the genitals (gan jing rao yin qi) — it passes directly through the reproductive system. That is why so many people with Liver-gallbladder damp-heat have problems in the urinary and reproductive tracts: painful urination, dark yellow urine, all kinds of eczema down below — some so itchy it is unbearable, breaking open at the slightest scratch. Add a change in the environment — the Jiangnan region is itself damp and hot; clothes changed too seldom; or contact with something unclean when out and about — and the disease flares. You see, Doctor Zhu Danxi’s opening note on the man’s character was no idle remark: character, cause, channel, and symptom all form one connected system.
The prescription: Dang Gui Long Hui Wan — four doses to drain Liver-gallbladder fire
The formula Doctor Zhu Danxi prescribed is the famous Dang Gui Long Hui Wan (当归龙荟丸, Angelica and Gentian Pill), recorded in the Danxi Xin Fa (Teachings of Danxi).
💬 Note from Doctor Luo: This formula is made precisely to drain excess fire from the Liver and gallbladder. Let us take it apart: Dang Gui (angelica) nourishes Liver blood; Long Dan Cao (gentian root) clears damp-heat from the Liver and gallbladder; Zhi Zi (gardenia) clears fire from the Heart, Liver, and Triple Burner; Huang Lian (coptis) drains Heart fire; Huang Bai (phellodendron) drains fire from the lower burner; Huang Qin (scutellaria) clears Lung heat; Da Huang (rhubarb) frees the intestines and lets the heat out through the stool; Lu Hui (aloe) drains Liver-gallbladder fire; Qing Dai (indigo) also drains Liver fire; and Mu Xiang (costus root) moves the qi. The original formula also contained She Xiang (musk) — and Doctor Zhu Danxi left the musk out. What does this formula treat? Whenever excess Liver-gallbladder heat is severe: in the upper burner — red eyes, ringing ears; in the middle burner — pain in the flanks and ribs, such as shingles (herpes zoster); Liver fire attacking the Lungs — coughing; in the lower burner — dark urine, painful urination, eczema and sores down below, bound stool. Zhang Jingyue’s verdict on this formula: it regulates “all states of agitation, feverish mania, palpitations, and restlessness” (一切燥扰狂热、惊悸不宁) — mania from blazing Liver fire, all manner of heat conditions, constipation, scorching red urine with pain, chest and diaphragm pain, even swelling of the scrotum.
And the result? “The diarrhea lessened after the plasters” (贴而利减) — after four doses, the diarrhea stopped.
The precision of dosing: stop the draining after four doses, then let Xiao Chai Hu Tang finish
Doctor Zhu Danxi did not keep the patient on this formula. Four doses did the work — and immediately he switched, prescribing Xiao Chai Hu Tang (小柴胡汤, Minor Bupleurum Decoction).
💬 Note from Doctor Luo: Many people, hearing “Zhu Danxi,” think of him only as the founder of the “nourish yin” school — a man of cooling herbs. But look at this patient: his Liver fire and Liver-gallbladder damp-heat were plainly severe — would you warm and tonify him? That would be sending him to his death; he had already blacked out once! Treating according to the pattern (bian zheng lun zhi) is forever the foundation of Chinese medicine. Yet Doctor Zhu Danxi did not simply drain fire without end — he used draining herbs with remarkable restraint: four doses, then stop. Why switch to Xiao Chai Hu Tang? Xiao Chai Hu is a harmonizing formula — less cold, it harmonizes the Liver and gallbladder; he removed Ban Xia (pinellia) for fear of its warm dryness; he added Huang Lian (coptis) to clear Heart-Liver fire, Bai Shao (white peony) to soften the Liver, Chuan Xiong (ligusticum) to regulate Liver qi and nourish Liver blood, and a little fresh ginger as a counter-balance so the formula would not be too cold. See how steady and alive the composition is. Five or six doses of this — and the patient recovered completely. In all, about ten doses.
Note from Doctor Luo: when fire must be drained, drain it — this is the root of Chinese medicine
This case gives us enormous food for thought.
💬 Note from Doctor Luo: The first lesson: many diseases are “diseases of the heart.” Doctor Zhu Danxi was one of the earliest physicians in Chinese medicine to write plainly in his case records that a patient’s personality and psychological state are connected to disease. A cunning, hot-tempered man has blazing Liver fire — and easily develops the damp-heat diseases of the Liver channel. For modern people, this goes without saying — I have said it again and again: the great majority of physical illness today is tied to bad emotions. Whenever you meet a patient whose disease is “complicated beyond all measure,” desperately hard to treat, frankly — it is almost always seriously tied to the psychological state. You defuse one bomb for him; he goes home, frets and worries, and comes back with two new ones. You defuse those; he adds three more. So the patient himself must wake up: you have to adjust, you have to change. If you do not, the road to recovery will be very, very long.
💬 Note from Doctor Luo: The second lesson: Doctor Zhu Danxi dosed his medicines with extraordinary precision. In his time the He Ji Ju Fang (Formulary of the Bureau of Peace and Benevolence Dispensary) was all the rage, and everyone loved to warm and tonify — it became a fashion. Doctor Zhu Danxi saw the harm in it — exactly like this choppy pulse: inside there was damp-heat and blockage, yet many doctors saw a weak pulse, took it for deficiency, and warmed. He wrote special essays insisting that warming tonics must not be abused. Later generations who never read his books parrot the line that “Zhu Danxi only knew how to drain fire and damage yang” — but look at this case: when fire had to be drained, he drained it, four doses and stop; and when warming was called for, he has warming cases too, no hesitation at all. He is called “the foremost physician of an era” (yi dai yi zong) — no joke. The man really did know how to gauge his doses.
Bonus: how is Dang Gui Long Hui Wan used today?
This formula is available today as a patent medicine — here is how to think about using it.
💬 Note from Doctor Luo: When do you use Dang Gui Long Hui Wan? When there is Liver-gallbladder damp-heat, severe Liver fire, with clear heat signs — and the heat tends to travel along the route of the Liver and gallbladder channels: the eyes, the ears, the chest and ribs, and down to the genitals. Then it is appropriate. Look at the tongue: red tongue body, thick yellow coating — if the heat pattern is confirmed, use it to drain the fire. But use it the way Doctor Zhu Danxi did: two or three days, stop as soon as the pattern is gone (zhong bing ji zhi), then switch to other methods of regulation. Do not keep taking it for two weeks — that is going too far. “Severe disease, promptly controlled” — that is the principle for today.
Compiled from Doctor Luo Dalun’s narration of Doctor Zhu Danxi’s case records (as recorded in the Danxi Xin Fa and related works).
What to take away: a stubborn sore in the private area, itching unbearably, plus loose stools and a stuffy chest — and a pulse that feels weak on the surface but hides wiry, rapid heat underneath. The first doctor saw “weak” and warmed the yang; two doses and the patient blacked out. Doctor Zhu Danxi saw through the illusion of the choppy pulse, traced the root to the man’s cunning, hot-tempered nature feeding Liver fire and damp-heat in the Liver channel, drained the fire with Dang Gui Long Hui Wan — four doses, then stopped — and let a harmonizing Xiao Chai Hu Tang bring the patient home. Two lessons to carry away: first, disease is often written in the heart — a calculating, irritable temperament breeds Liver fire, and Liver fire finds its way down the Liver channel to the genitals; second, dose with measure — drain when draining is right, stop the moment the pattern breaks, and never warm a patient whose “weakness” is really blocked damp-heat. Treat according to the pattern, not according to fashion — that is the root of Chinese medicine.