Neck Tendons Contracting, Stiff Back, Head Pulled Back? Doctor Zhang Xichun’s Huo Luo Xiao Ling Dan for Tendon Spasm (Zong Jin Contracture)
Patient search terms: contracting painful tendons / stiff back and waist / head pulled backward / muscle spasms / cramping / whole-body pain Medical terms for this condition: zong jin contracture · stasis blocking the sinews · stomach dryness with damaged fluids · sinew-channel disease
Opening: when this illness hit, the only way to look was up at the sky
Today’s case is about a woman in her fifties who came down with a most peculiar illness. How strange was it? The great tendon at the back of her neck seemed to be contracting — pulling in and hurting at the same time. Her head was dragged backward so hard that she could no longer look straight ahead at anything: her eyes could only turn to the sky. And her back and waist? They were straight, rigid, hard as a board — as if something had bound them tight.
💬 Note from Doctor Luo: Picture that scene — head thrown back, back and waist stiff and straight. It resembles what Chinese medicine calls “jiao gong fan zhang” (bow-drawn-back stiffness, opisthotonos). The illnesses ordinary people come down with are truly strange and varied. What does that tell us? That the human body is enormously complex, and many diseases need to be studied patiently, one case at a time.
Who was the patient? Every great sinew in her body was rebelling
The neck was not the whole story. This woman had a whole list of complaints: the great tendon behind the knee (in the hollow at the back of the leg) hurt, the great tendon at the heel hurt, her whole body felt pulled and ached, and her joints ached dully. In a word: every sinew in her body was causing trouble.
💬 Note from Doctor Luo: She had already called in many doctors, and not one of them could make head or tail of it — none of them even knew what disease this was. Small wonder: the symptoms were too bizarre. Head tilted back, back stiff, tendons contracting — however you looked at it, it did not resemble any common illness.
Two years of mistreatment: treated as a stroke, and only getting worse
How did the doctors treat her? They reasoned along conventional lines: she must have had a wind stroke, been invaded by wind — so let us dispel wind. Insufficient blood? Then supplement the blood. Sinews not moistened? Then moisten the sinews and unblock the collaterals — a full round of measures, adding everything that could be added.
💬 Note from Doctor Luo: And the result? They treated her for a full two years with no effect at all — in fact the illness only grew worse. In the end this woman lay in bed unable to get up, could not even sit, could not eat, and her appetite was ruined. The family had tried everything, and when someone told them that Doctor Zhang Xichun was a master physician, they invited him in.
Doctor Zhang Xichun took her pulse and smiled: this is a disease of the zong jin
Doctor Zhang Xichun felt her pulse: it beat fast, with force, and carried a slightly wiry quality — like a taut zither string. He knew in an instant, and declared: this is a disease of the zong jin (ancestral sinews).
💬 Note from Doctor Luo: This brings up a concept most people have not heard of — the zong jin. What are the zong jin? Beyond the twelve main meridians, the body also has sinews that run along the body surface, called the jing jin (sinew channels). They are especially important around the joints — and these belong to the category of zong jin. The term zong jin actually has two meanings: one refers to these sinew channels running along the body surface; the other is that the ancients also called the male genital organ the zong jin, because it too contains sinews.
The key insight: ordinary sinews are governed by the liver — but the zong jin is governed by the stomach
Why was it precisely the zong jin that went wrong? Doctor Zhang Xichun put forward a very distinctive view: most of the body’s sinews belong to the liver — “the liver governs the sinews,” as the classics say. But the zong jin alone belongs to the stomach — it is governed by the stomach.
💬 Note from Doctor Luo: This idea has a deep classical pedigree. In the “Treatise on Wei (Atrophy) Disorders” chapter of the Yellow Emperor’s Classic of Internal Medicine (《黄帝内经·素问·痿论》), it says: “The yangming (stomach meridian) is the sea of the five viscera and six bowels; it moistens the zong jin, and the zong jin binds the bones and makes the joints move freely.” The yangming stomach meridian nourishes the ancestral sinews, and the ancestral sinews bind the skeleton and keep the joints agile. Doctor Zhang Xichun followed exactly this line of thinking, and in one stroke he saw straight to the root of the disease.
The root of the disease: dryness-heat in the stomach, fluids too depleted to feed the sinews
Why did the zong jin contract, and why did it hurt? Doctor Zhang Xichun laid out the whole chain of events with perfect clarity: this woman had long-standing dryness-heat in her stomach. Heat in the stomach burned away her fluids — the fluids ran short, and there was nothing left to moisten and nourish the zong jin. Deprived of nourishment, the ancestral sinews began to contract: once they contracted, they pulled, hurt, and stiffened — and the whole body was dragged into pain.
💬 Note from Doctor Luo: Do you see it? The disease appears in the sinews, but the root sits in the stomach. Stomach dryness-heat → fluids depleted → zong jin loses nourishment → contraction and pain. Once that line is drawn, the treatment follows naturally. This is the brilliance of Doctor Zhang Xichun’s principle “to treat the sinews, first treat the stomach.”
The prescription, taken apart: Huo Luo Xiao Ling Dan as the foundation, four added herbs each with a purpose
Here is the formula: Huo Luo Xiao Ling Dan (Vitality-Unblocking Miraculous Elixir) — dang gui (Chinese angelica) 5 qian (about 15 g), dan shen (salvia root) 5 qian, raw ru xiang (frankincense) 5 qian, raw mo yao (myrrh) 5 qian. This is Doctor Zhang Xichun’s signature formula. To it he added raw yi mi (yi yi ren, coix seed) 8 qian (about 24 g) — a slightly larger dose — plus zhi mu (anemarrhena root), xuan shen (figwort root) and bai shao (white peony), 3 qian (about 9 g) each.
💬 Note from Doctor Luo: Why did he add these particular herbs? Doctor Zhang Xichun explained it plainly. He added coix seed because coix is mild and harmonious in nature — it excels at gently strengthening the spleen and stomach and clearing dampness. When the spleen and stomach are well regulated, they can nourish the zong jin. He added zhi mu and xuan shen to generate fluids and moisten dryness — he was concerned the formula might run too warm. And he added bai shao to soften the liver — because the pulse carried a wiry quality, he feared the liver wood was too vigorous, that wood would overpower earth, and once the liver qi ran rampant sideways, the spleen and stomach would be hurt again and the zong jin would suffer once more. Link after link, every consideration was in place.
Activating blood and soothing the sinews: when stasis blocks the sinews, it must be dissolved
So what does Huo Luo Xiao Ling Dan do? It activates the blood and soothes the sinews. Doctor Zhang Xichun’s view was explicit: this formula treats stasis blocking the sinews — when stagnant blood lodges in the sinews, the formula activates blood and unblocks the collaterals, letting the sinews relax and releasing the contracture. Activating blood, unblocking collaterals, soothing sinews — it strikes precisely at the heart of the zong jin contracture.
💬 Note from Doctor Luo: Ru xiang (frankincense) and mo yao (myrrh) are a pair of blood-activating herbs that Doctor Zhang Xichun loved to use. Both are plant resins with strong penetrating power: they can burrow deep into the sinew networks, dissolve stagnant blood, and yet never injure the upright qi. Paired with dang gui and dan shen, which nourish the blood while activating it, the formula both opens and builds — wonderfully balanced.
Cured in thirty doses: three lines of attack, none dispensable
The patient took this formula continuously for thirty doses, and the illness was cured — the woman who had lain bedridden for two years, head tilted back and back stiff, stood up again.
💬 Note from Doctor Luo: What do we learn from this case today? We learn the concept of the zong jin: most of the body’s sinews are governed by the liver meridian, but the ancestral sinews — those that connect the joints and run along the body surface — are governed by the stomach. When the stomach meridian is diseased, it produces disorders of the zong jin. So when treating illnesses of the ancestral sinews, follow Doctor Zhang Xichun’s three-legged approach: regulate the stomach (clear stomach heat, nourish stomach yin, dispel dampness), unblock the collaterals (activate blood and soothe the sinews), and soften the liver (prevent liver wood from overpowering earth). Walk on all three legs, and the disease is cured.
Bonus: with sinew complaints, don’t rush to treat the sinews
One last aside. When you meet problems like contracting tendons, painful tendons, or cramping, don’t fix your eyes on the sinews alone. Today’s case shows that sinew trouble is often an “upstream” problem — dryness-heat in the spleen and stomach, insufficient fluids, liver qi running rampant: any of these can make the sinews “throw a tantrum.” Regulate the spleen and stomach, nourish the fluids fully, and smooth the liver qi — and the sinews will relax on their own.
What to take away
- The zong jin (ancestral sinews) is governed by the stomach, not the liver. Ordinary sinews belong to the liver, but the ancestral sinews — the surface sinew channels around the joints — are nourished by the yangming stomach meridian (as the Classic of Internal Medicine states: “yangming moistens the zong jin; the zong jin binds the bones and moves the joints”).
- The disease may appear in the sinews while the root sits in the stomach: stomach dryness-heat burns the fluids, the fluids can no longer nourish the zong jin, and the sinews contract, hurt and stiffen — here presenting as head pulled backward, rigid back, and whole-body pulling pain.
- Treat the sinews by treating the stomach first: Doctor Zhang Xichun’s formula was Huo Luo Xiao Ling Dan (dang gui, dan shen, frankincense, myrrh) to activate blood and soothe the sinews, plus coix seed to strengthen the spleen and clear dampness, zhi mu and xuan shen to generate fluids and moisten dryness, and bai shao to soften the liver — regulate the stomach, unblock the collaterals, soften the liver, all at once.
- For cramping, contracture and sinew pain, look upstream: regulate the spleen and stomach, replenish the fluids, and smooth the liver qi — the sinews relax when their nourishment is restored.
Compiled from Doctor Luo Dalun’s commentary on Doctor Zhang Xichun’s case records; the case is from Records of Chinese Medicine with Western Reference (《医学衷中参西录》).