Fever with Palpitations and Shortness of Breath? Doctor Zhang Xichun’s White Tiger plus Ginseng Decoction for an External Cold in a Weak-Constitution Patient

Patient search terms: fever / palpitations / racing, erratic heartbeat / shortness of breath, can’t catch the breath / body burning hot with hot sweat / catching a cold when your body is weak Corresponding medical terms: externally contracted febrile illness · deficiency of both qi and yin · blazing yang ming heat (White Tiger plus Ginseng pattern)

Opening: one herb that Doctor Zhang Xichun praised as “unrivaled”

Today Doctor Luo Dalun talks once again about the herb Doctor Zhang Xichun loved most — raw gypsum (sheng shi gao). Doctor Zhang Xichun once wrote a passage that Doctor Luo finds deeply worth pondering: for clearing the true excess heat of an externally contracted illness — the kind of fever where the body burns fiercely — this single herb is “an unrivaled good medicine” — it ranks first, with no second place.

💬 Note from Doctor Luo: Doctor Zhang Xichun’s lifetime specialty was daring to use raw gypsum and knowing how to use it well. Yet he himself said something quite honest: sometimes, even with a heavy dose of raw gypsum, there was no effect. Why? Because the person’s zheng qi (upright qi) was insufficient! So one must always follow the intention of the White Tiger plus Ginseng Decoction. This point is so important — and today’s case is devoted precisely to it.

White Tiger plus Ginseng Decoction: an old rule left by Doctor Zhang Zhongjing

Where does the White Tiger plus Ginseng Decoction come from? Doctor Zhang Zhongjing wrote it down in the Shang Han Za Bing Lun (Treatise on Cold Damage and Miscellaneous Diseases). The White Tiger Decoction may be used when it is indicated — but what if the patient’s zheng qi is insufficient? Add ginseng to it, and the external pathogen and heat pathogen can quickly be driven out.

💬 Note from Doctor Luo: Doctor Zhang Xichun said one must always follow the intention of the White Tiger plus Ginseng Decoction and use ginseng to support the patient. As soon as the formula pairs raw gypsum with ginseng, the heat-clearing effect of the gypsum shows its full power. Gypsum clears the heat; ginseng holds up the foundation. Once the zheng qi is sufficient, the heat pathogen retreats cleanly and decisively.

What was the rule Doctor Zhang Zhongjing left behind? Following the Shang Han Lun’s approach to externally contracted illness — sweating, vomiting, purging: after sweating, vomiting, or purging, the zheng qi is sure to suffer some damage, and at that point, when using the White Tiger Decoction, ginseng must be added. Likewise, if the patient feels thirsty, ginseng is also added to the White Tiger Decoction.

Doctor Zhang Xichun’s hard-won experience: for this kind of person, gypsum must be paired with ginseng

Doctor Zhang Xichun added that in all his years of clinical experience he had found that anyone past fifty — or a younger person who labors mentally and physically, who is especially worn down by overwork — generally carries internal damage and insufficient zheng qi. For such people, raw gypsum must be combined with ginseng — even if there has been no sweating, vomiting, or purging, add the ginseng anyway — and the results are often better.

💬 Note from Doctor Luo: This experience is extremely important. When a person of insufficient zheng qi uses raw gypsum, adding a little dang shen (Codonopsis) or Northeast ginseng will give excellent results — the ginseng protects the zheng qi, then helps the zheng qi push the pathogen out. Remember this rule: gypsum plus ginseng means clearing heat without wounding the upright qi.

Who was the patient? A young man in his twenties, “flushed through” into serious trouble

The patient in today’s case, Fu Xiupeng, lived in West Fu Family Village — the area around Doctor Zhang Xichun’s maternal grandmother’s home — and was only in his twenties. The young man had always been frail, with insufficient zheng qi. One day, he happened to feel that his qi was not flowing smoothly — something felt off — so he went to see a doctor.

The doctor prescribed herbs like san leng (trigone) and e zhu (zedoary) — medicines with a blood-breaking, unblocking nature, meant to “flush things through” for him. And what happened? The young man began to suffer shortness of breath (duan qi) — his breathing was suddenly not right — and he was so frightened he dared not take the medicine again.

💬 Note from Doctor Luo: This was mistreatment. A person with insufficient zheng qi — how could he withstand the “flushing” of blood-breaking herbs? San leng and e zhu both break blood and dissolve accumulations. His body was already weak; the flushing only wounded his qi.

Two days later, the illness suddenly turned fierce

Two days after stopping the medicine, the young man suddenly began to breathe in reverse — chuan ni — panting violently; then his whole body broke out in jin ti rou shun: sinews pulled tight, muscles jumped, as if startled; and his spirit became clouded. Taking the pulse: between one breath and the next it beat six times — a rapid pulse (shu mai), beating very fast; yet the pulse was still floating, and swaying as if about to fall — press on it and it seemed to vanish.

💬 Note from Doctor Luo: A floating pulse should mean an external pathogen at the surface — but a floating pulse that “vanishes on pressure” is a sign of insufficient zheng qi: the body is so depleted it can barely hold onto the breath. At this point Doctor Zhang Xichun was summoned. One touch of the pulse, and he already understood seven or eight parts of the picture.

Doctor Zhang Xichun looked and saw: the external cold had been there all along — the zheng qi just couldn’t hold it off

Looking more closely: the skin was very hot — a fever; the upper body broke into hot sweat from time to time; the patient himself said his heart felt as if pressed by heat, his heart jumping wildly — xin zhong zheng chong; the tongue had no white coating, but the center was yellow — a sign of heat inside the body.

Surveying the whole picture, Doctor Zhang Xichun made his judgment: although the illness broke out in a single day, the external cold had entered more than a day ago.

💬 Note from Doctor Luo: This remark gets to the heart of it! A person with insufficient zheng qi lacks the strength to resist the pathogen — the external cold entered long ago, it just never broke out. Give the body a little support of upright qi, and the fever begins at once — the body has started fighting the pathogen. Many people in sub-health are exactly in this state: usually nothing is wrong, but the moment a holiday arrives, they come down with a fever and a cold. Why? Because they keep wearing themselves out day after day; only on holiday does the body finally gather enough energy to resist the pathogen.

First move: no time to boil medicine — drink a raw egg yolk first

The young man’s palpitations were severe, and his zheng qi was too depleted — there was no time to fetch and boil herbs. Doctor Zhang Xichun acted immediately: use raw egg yolk (sheng ji zi huang) — crack open the egg, remove the white, keep only the yolk, mix it with warm water and swallow it down.

💬 Note from Doctor Luo: Egg yolk is an excellent yin-nourishing medicine. Palpitations often arise when the yin is insufficient and the heart loses its nourishment; nourishing the yin settles it. First patch up the zheng qi, the kidney essence, and the kidney yin, steady the position — then and only then send in the prescription.

After drinking it, the palpitations did ease. Only then did Doctor Zhang Xichun send in the formal prescription.

Large-dose White Tiger plus Ginseng: three liang of gypsum, one dose turns the tide

Doctor Zhang Xichun prescribed a large-dose White Tiger plus Ginseng Decoction (Bai Hu Jia Ren Shen Tang):

• Raw gypsum, three liang (about 90 g) — Doctor Zhang Xichun always had the courage to dose boldly; three liang of gypsum, no hesitation;
• Ginseng, six qian (about 18 g) — he did not write dang shen (Codonopsis), did not write tai shen (Taiwan ginseng); he used Northeast ginseng;
• Dried huai shan yao (Chinese yam) — used in place of the rice (jing mi) in the original White Tiger Decoction; the rice was dropped;
• Decocted into one large bowl, then three raw egg yolks stirred in, drunk warm, slowly, in sips, while still hot.

💬 Note from Doctor Luo: Notice this detail — the original White Tiger Decoction uses rice; Doctor Zhang Xichun deliberately swapped in huai shan yao. Why? Huai shan yao tonifies the spleen and consolidates qi — it supports the upright qi better than rice, exactly matching the “insufficient zheng qi” mechanism of this case. Everywhere in Doctor Zhang Xichun’s prescribing, he is thinking of protecting the upright qi.

The result? After this one bowl, the illness was cured — a single dose did it!

💬 Note from Doctor Luo: Look at how Doctor Zhang Xichun treated illness: accurate prescribing, bold dosage — and the situation was turned around at once. The precondition is an exact pattern differentiation — clearly there was heat, but underneath it was deficiency, so gypsum was paired with ginseng and egg yolk: clearing heat and nourishing yin, both at once.

Bonus: two things worth taking away

In this case, Doctor Luo says there are two pieces of knowledge worth taking home:

First, what is a raw egg yolk good for? Chinese medicine holds that it nourishes yin and supplements essence. In many febrile illnesses that damage the yin, a raw egg yolk is stirred into the decocted medicine and drunk to nourish yin — it is a fine thing.

Second, when should ginseng be added to the White Tiger Decoction? Learn from Doctor Zhang Xichun — when using the White Tiger Decoction or raw gypsum, whenever you meet a person of insufficient zheng qi, pair it with ginseng. This is the experience Doctor Zhang Xichun took from Doctor Zhang Zhongjing and left for later generations. After sweating, vomiting, or purging; with thirst; past fifty; worn down by mental and physical labor — in all these situations, gypsum must be used together with ginseng.

💬 Note from Doctor Luo: Raw gypsum is the herb Doctor Zhang Xichun mastered best, and we will spend some more time on this topic. Tomorrow Doctor Luo continues with how Doctor Zhang Xichun used raw gypsum — see you then!

What to take away

• Heat is not the whole story: a fierce fever with palpitations and shortness of breath can hide a foundation of depleted zheng qi — the more the heat blazes, the more the body’s reserves matter.
• Gypsum plus ginseng clears heat without wounding the upright qi: whenever raw gypsum is used for a person of weak constitution — after sweating, vomiting, or purging, when thirsty, past fifty, or worn out by overwork — add ginseng, exactly as Doctor Zhang Zhongjing’s White Tiger plus Ginseng pattern prescribes.
• Raw egg yolk is an emergency yin tonic: when palpitations come from insufficient yin, one raw egg yolk mixed with warm water can steady the heart while the real prescription is being prepared.
• A weak body stores up its battles: when the zheng qi is too weak to resist, an external cold can sit latent for days before breaking out — which is why the exhausted often fall ill exactly when they finally rest.

Based on Doctor Luo Dalun’s commentary on Doctor Zhang Xichun’s case records; the case is from Records of Chinese Medicine with Reference to Western Medicine (《医学衷中参西录》).