Rash Comes Out Then Sinks Back In? Doctor Zhang Xichun’s Antelope Horn (Lingyangjiao) Cases That Drew the Sunken Measles Rash Back Out
Patient search terms: rash comes out then sinks back in / measles that won’t come out / rash shrinks back right after appearing / child with measles and fever / measles with high fever that won’t break
Medical terms for this condition: measles · receding rash (dao ye, toxin sinking inward) · toxic fire attacking inward
Opening: on Danbo Hutong, a five-year-old girl with measles
Today we continue our conversation about how Doctor Zhang Xichun used ling yang jiao (antelope horn). This case took place in Fengtian — that is, Shenyang, Doctor Luo Dalun’s own hometown. Inside the Xiaobeimenli district of Fengtian ran a lane called Danbo Hutong (“Plain and Modest Lane”). Whether the lane still exists today, nobody knows, but the name is a good one: plain, modest. Who lived in this lane? A friend of Doctor Zhang Xichun, Mr. Zhu Gongjiu. And it was his youngest daughter, five years old, who came down with measles.
💬 Note from Doctor Luo: What is measles? Measles is an infectious disease caused by a virus, one that attacks the respiratory system. In the old days measles in children was extremely common — one of the major illnesses threatening children’s health. Today, thanks to vaccination, cases have dropped greatly, but it still occurs from time to time — for example, in February and March of this year, Beijing saw roughly several dozen, perhaps over eighty, cases of measles. So this disease still has real relevance for us today.
How does measles run its course? Fever first, rash second — there is a strict “route map”
How does measles begin in a child? First a fever — it rises like an ordinary cold. Then a few spots appear inside the lips, and quickly disappear. Then the rash moves up to the face. And where on the face does it appear first? Behind the ears.
💬 Note from Doctor Luo: When a child has a fever, you should always check behind the ears — if small red dots appear behind the ears, suspect measles. This rash follows a fixed route: on the first day it spreads from behind the ears along the hairline down to the neck; on the second day it reaches the arms and upper body; on the third day it moves to the lower body. It travels in strict time order, and several days later it fades away in the same sequence. Generally, without complications, the child recovers on his or her own; but once complications appear — pneumonia and all sorts of other problems — the illness can turn severe and cause serious trouble.
The one sentence that matters most: a rash that “comes out” is good fortune; a rash that “sinks back in” is disaster
In measles, the rash coming out is the favorable course — it erupts fully, then gradually fades, and that is normal. But if the rash has just come out and then, for whatever reason, suddenly sinks back in, that is not merely a bad sign — it usually leads to a far more serious illness.
💬 Note from Doctor Luo: This is the key to the entire story. Chinese medicine treats measles by “tou zhen” — venting the rash, letting the toxic evil out through the skin. When the rash moves outward, the toxin has an exit, and the disease resolves; when the rash sinks inward, the toxin has no exit and instead attacks the internal organs. In and out — the difference is as vast as heaven and earth.
The five-year-old girl’s rash “receded” the day after it appeared — she was miserable and restless
On the second day of Mr. Zhu Gongjiu’s daughter’s measles, the rash began to pull back. Doctor Luo Dalun deliberately explains this character from the original text: the record says “chu zhen ci ri ji dao ye” — the rash receded the day after it appeared. The character ye (靥) is composed of an upper part meaning “loathe” and a lower part meaning “face.” What does it mean? It describes measles or chickenpox that has just broken out and then suddenly draws back in — this is called dao ye (倒靥), the “receding rash.”
💬 Note from Doctor Luo: Dao ye is not a good sign. The rash suddenly receding means “heat toxin sinking inward” (re du nei xian) — the poison is being driven toward the inside. This can lead to a more serious condition — for example, if the toxic evil enters directly into the heart channel, the illness becomes much worse. This child’s rash receded the day after it appeared; her spirit was restless and disturbed, and she felt terribly unwell inside. A five-year-old child, tormented beyond endurance.
The first move: forsythia, cicada slough, mint, honeysuckle — vent it outward. It wouldn’t come out.
What to do then? They came to Doctor Zhang Xichun. He began with lian qiao (forsythia), chan tui (cicada slough), bo he (mint leaves), and jin yin hua (honeysuckle) — lian qiao resolves toxin, chan tui has the power to resolve toxin and release the exterior (chan tui is the shell a cicada sheds), and jin yin hua also clears heat, resolves toxin, and vents outward. The strategy was clear: resolve toxin, release the exterior, push the rash out.
💬 Note from Doctor Luo: The strategy was completely correct, and every herb was a standard rash-venting, toxin-resolving medicine. And the result? After drinking it, the rash still would not come out. The illness didn’t budge. Now what?
Doctor Zhang Xichun makes the call: add antelope horn at once! Two qian down — and the rash came back out
Doctor Zhang Xichun took one look and said: add ling yang jiao (antelope horn) immediately! Why? Because the heat toxin had already sunk inward — the ordinary surface-venting herbs no longer had enough strength. Ling yang jiao, 2 qian, decocted and drunk. After he drank it — the rash came back out!
💬 Note from Doctor Luo: You see, antelope horn has the power to push a rash outward. And don’t waste the dregs — decoct them twice more and let the child keep drinking. Then this child’s measles was completely cured. Doctor Zhang Xichun himself said: from this case we know that the power of antelope horn to release the exterior and vent the rash outward is distinctly different from that of other medicines. The toxin-clearing, heat-resolving medicines had no effect; the moment antelope horn was used, the rash erupted — this shows antelope horn has a special function all its own.
The second case: the young daughter of Wang Xichun, head of the Tong Shan Tang charity — also five years old
Now for the second case. Tong Shan Tang — what was that? It was the provincial public welfare headquarters of the time. Its head, Mr. Wang Xichun, had a youngest daughter, also five years old, whose rash receded too abruptly right after it appeared — toxic fire had sunk inward.
💬 Note from Doctor Luo: Did you notice? Doctor Zhang Xichun writes the patient’s name and place of work in every single case — what does that show? These are genuine, real cases, solidly recorded. Otherwise someone might think: my goodness, is Chinese medicine just bragging — this powerful? Cured in one or two doses of medicine? Ladies and gentlemen, these are real cases, written down clearly and concretely.
Toxin sunk inward for over ten days: ten days of unrelenting high fever, and the child grew weak
This child’s situation was more serious: the rash receded almost as soon as it appeared — the color suddenly darkened, the rash flattened and drew back in. That was bad; it should have come out fully over several days. By now the toxin had been sunk inward for over ten days, and still the high fever would not stop — burning continuously. A long illness weakens the body; a five-year-old child can hardly bear it, and she grew thinner and weaker by the day.
💬 Note from Doctor Luo: When Doctor Zhang Xichun felt the pulse, there was indeed true excess heat in it, and the child had dry stools and scanty dark urine. Doctor Zhang Xichun said: I can see this is beyond what ordinary simple formulas can handle. The illness was severe, and he intended to write a large, comprehensive prescription — but then the child’s father raised a “difficulty.”
The father’s difficulty: my child won’t drink bitter medicine — prescribe something “tasty”
The father said: my daughter has a special trait — forcing medicine down her throat is terribly hard, because she simply doesn’t like it. You must prescribe some “tasty medicine” — something a child will accept, so she can drink it herself. That would be best. A whole bowl forced down, the child can’t bear it.
💬 Note from Doctor Luo: This put Doctor Zhang in a bit of a spot — the illness this severe, and the medicine still has to taste good? But Doctor Zhang Xichun had a way: he wrote an exceptionally simple prescription — just two herbs.
Two herbs: antelope horn 2 qian, raw gypsum 2 liang — and the decoction has no taste at all
What was the formula? Ling yang jiao (antelope horn), 2 qian; sheng shi gao (raw gypsum), 2 liang. Why add 2 liang of raw gypsum? Raw gypsum also has the power to clear heat and release the exterior — it vents the pathogenic qi outward. He decocted a large bowl and had the child sip it slowly.
💬 Note from Doctor Luo: These two herbs — antelope horn and raw gypsum — share one trait: after decocting, they have no taste whatsoever. Both are like that, so the child did not resist and could drink it slowly on her own. The medicine went down — two doses in a row, and this child’s illness was cured. Ten days of unrelenting high fever from sunk-in toxin — two herbs, two doses, and it was over.
Doctor Zhang Xichun’s accumulated experience: when measles recedes, use antelope horn to “drive” the toxin out
Doctor Zhang Xichun recorded a great many cases of treating measles: when the rash came out and then suddenly drew back in — an unfavorable sign — he used antelope horn in every one, and drove the pathogenic qi back out again.
💬 Note from Doctor Luo: What does this show? In the course of treating measles, antelope horn has a special role — this is Doctor Zhang Xichun’s experience. The reasoning is simple: with measles, the evil qi moving outward is the good thing; the rash erupting is normal. If the rash comes out but fails to follow its proper order and suddenly draws back in, that is the toxin sinking inward. At that moment, antelope horn’s power to resolve toxin and release the exterior is especially good — it can bring the rash back out and let the illness resolve quickly. Knowing this, you already have today’s takeaway. Tomorrow we’ll continue: how Doctor Zhang Xichun treated illness with antelope horn.
Compiled from Doctor Luo Dalun’s commentary on the case records of Doctor Zhang Xichun; the case is from Records of Chinese Medicine with Western Reference (《医学衷中参西录》), published in installments 1918–1934.