Chong He Gao

Harmonizing Paste · 冲和膏

Also known as: 冲和散 (Chōng Hé Sǎn), 阴阳散 (Yīn Yáng Sǎn)

A classical external-use paste formula from Chinese surgical medicine, designed to treat sores and swellings that are neither fully hot (yang) nor fully cold (yin) in nature. It works by dispelling Wind-Dampness, promoting blood circulation, reducing swelling, and relieving pain. It is applied topically to skin abscesses, boils, and other soft tissue infections that are slow to resolve.

Origin Wai Ke Li Li (《外科理例》, Exemplary Cases for External Medicine) by Wang Ji (汪机) — Míng dynasty, 1531 CE
Composition 5 herbs
Zi
King
Zi Jing Pi (紫荆皮, Cercis Bark)
Du Huo
Deputy
Du Huo
Chi Shao
Deputy
Chi Shao
Bai Zhi
Assistant
Bai Zhi
Shi Chang Pu
Envoy
Shi Chang Pu
Explore composition

Educational content Consult qualified TCM practitioners for diagnosis and treatment

Patterns Addressed

In TCM, symptoms don't appear randomly — they cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Chong He Gao is designed to correct these specific patterns.

Why Chong He Gao addresses this pattern

Chong He Gao addresses the pattern of Qi stagnation and Blood stasis as it manifests in external sores and swellings. When Qi and Blood become stagnant in the muscles and skin, they form localized masses that are firm, mildly swollen, and slow to resolve. The sore may have a pale or faintly reddish color, reflecting the incomplete nature of the stagnation, which is neither fully hot nor fully cold. Zi Jing Pi and Chi Shao directly invigorate blood and disperse stasis, while Du Huo and Bai Zhi move Qi through the channels and expel Wind-Dampness that contributes to the blockage. Shi Chang Pu penetrates the stagnation with its aromatic properties. Together, these herbs restore the normal flow of Qi and Blood to the affected area, allowing the swelling to disperse naturally.

A practitioner would look for one or more of these signs

Swelling

Firm, persistent swelling of moderate size

Skin Discoloration

Pale or faintly reddish skin over the lesion

Pain Worsened By Pressure

Mild to moderate localized pain or tenderness

Nodules

Firm lumps beneath the skin that persist for days without resolving

Commonly Prescribed For

These conditions can arise from the patterns above. A practitioner would consider Chong He Gao when these conditions are specifically caused by those patterns — not for all cases of these conditions.

TCM Interpretation

In TCM, skin abscesses are understood as localized accumulations of toxic pathogenic factors combined with stagnation of Qi and Blood. When the body's defensive Qi encounters pathogenic factors (such as Heat-toxin, Wind, or Dampness), a battle ensues at the site, leading to swelling, pain, and eventually pus formation. The specific presentation of a 'half-yin, half-yang' abscess means the pathogenic factor is not purely one of Heat-toxin (which would produce a bright red, hot, rapidly growing lesion) nor purely Cold-Dampness (which would produce a pale, sunken, painless mass). Instead, Qi stagnation and Blood stasis combine with mild Wind-Dampness to create a lesion that is firm, moderately swollen, faintly colored, mildly painful, and stubbornly refuses to either fully develop or fully resolve on its own.

Why Chong He Gao Helps

Chong He Gao is specifically designed for this in-between presentation. Zi Jing Pi and Chi Shao break through the blood stasis at the core of the abscess, restoring circulation to the affected area. Du Huo expels the Wind-Dampness component that makes the swelling diffuse and persistent. Bai Zhi promotes the discharge of pus and toxins while encouraging new tissue growth. Shi Chang Pu penetrates through the dampness and turbidity to ensure the other herbs can reach the deeper layers of the affected tissue. Applied topically, these herbs work directly at the site of the abscess to harmonize the conflicting pathological factors and guide the lesion toward natural resolution.

Also commonly used for

Boils

Boils and furuncles in early stages that are firm, mildly swollen, and not highly inflamed

Nodules

Subcutaneous nodules and indurations

Swelling

Localized swelling from traumatic injury or infection

Wound Infections

Infected wounds that are slow to heal

What This Formula Does

Every TCM formula has a specific set of actions — here's what Chong He Gao does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Chong He Gao is primarily used to support these areas of health:

TCM Actions

In TCM terminology, these are the specific therapeutic actions that Chong He Gao performs to restore balance in the body:

How It Addresses the Root Cause

TCM doesn't just suppress symptoms — it aims to resolve the underlying imbalance. Here's how Chong He Gao works at the root level.

Chong He Gao addresses a specific and clinically important category of external lesion in TCM surgery: the "half-Yin, half-Yang" (半阴半阳) pattern. In TCM external medicine, sores and abscesses are classified on a spectrum from pure Yang (bright red, hot, swollen, painful, quick to suppurate) to pure Yin (pale, flat, cold, painless, slow to develop). The half-Yin, half-Yang pattern sits in between: the swelling is firm but the color is pale or dusky rather than bright red, the lesion may or may not feel warm, and it neither resolves quickly like a Yang sore nor sinks into the deep, cold stagnation of a true Yin sore.

The underlying disease mechanism involves a combination of Qi stagnation, Blood stasis, and lingering Wind-Dampness in the local tissues. When pathogenic factors lodge in the flesh and channels but the body's Yang Qi is not strong enough to fully push toxins to the surface (as in a Yang pattern), yet not so weak that the lesion collapses inward (as in a Yin pattern), the result is this intermediate state. The local circulation of Qi and Blood is obstructed, fluids congeal, and the channels become blocked, producing a firm, pale-colored swelling that resists resolution. Because the pathology is neither purely Hot nor purely Cold, treatment must harmonize both aspects, hence the name "Chong He" (冲和), meaning to "harmonize" or "bring into balanced accord."

By simultaneously dispersing Wind-Dampness, activating Blood flow, and opening the channels with aromatic penetrating substances, the formula aims to restore normal circulation in the affected area, allowing the body's own healing mechanisms to either resolve the swelling entirely or bring it to a point where it can properly mature and drain.

Formula Properties

Every formula has an inherent temperature, taste, and affinity for specific organs — these properties determine how it interacts with the body

Overall Temperature

Slightly Warm

Taste Profile

Predominantly acrid and aromatic, with bitter undertones. The acrid taste disperses stagnation and opens channels, while the aromatic quality penetrates to the affected tissue.

Target Organs

Ingredients

5 herbs

The herbs that make up Chong He Gao, organized by their role in the prescription

King — Main ingredient driving the formula
Deputy — Assists and enhances the King
Assistant — Supports or moderates other herbs
Envoy — Directs the formula to its target
King — Main ingredient driving the formula
Zi

Zi Jing Pi (紫荆皮, Cercis Bark)

Dosage 15g (five qian in classical dose)
Preparation Dry-fried (炒)

Role in Chong He Gao

The chief herb in this formula, used in the largest dose. Zi Jing Pi activates blood circulation, disperses stasis, reduces swelling, and resolves toxins. It is the primary force for breaking through stagnant blood and Qi at the site of the sore, addressing the fundamental blockage that prevents the lesion from resolving.
Deputies — Assists and enhances the King
Du Huo

Du Huo

Pubescent angelica roots

Dosage 90g (three liang in classical dose)
Temperature Warm
Taste Bitter, Pungent
Organ Affinity Urinary Bladder, Kidneys
Preparation Remove nodes, dry-fried (去节炒)

Role in Chong He Gao

Used in the largest weight in the formula, Du Huo strongly dispels Wind-Dampness and relieves pain. It lifts Qi and activates blood, and in the classical understanding, it 'draws out cold toxins from the bones' and eliminates dampness from the flesh. It powerfully supports Zi Jing Pi by addressing the Wind-Damp component of the pathology.
Chi Shao

Chi Shao

Red peony roots

Dosage 60g (two liang in classical dose)
Temperature Cool
Taste Bitter
Organ Affinity Liver
Preparation Dry-fried (炒)

Role in Chong He Gao

Clears Heat, cools the Blood, disperses blood stasis, and reduces swelling. Chi Shao addresses the mild heat and redness in the lesion, working alongside Zi Jing Pi to invigorate blood circulation and resolve the underlying stasis that keeps the sore from dispersing.
Assistant — Supports or moderates other herbs
Bai Zhi

Bai Zhi

Angelica roots

Dosage 30g (one liang in classical dose)
Temperature Warm
Taste Pungent
Organ Affinity Spleen, Stomach, Lungs

Role in Chong He Gao

Expels Wind, reduces swelling, expels pus, and alleviates pain. In the classical view, Bai Zhi 'generates new flesh and stops pain.' It assists the formula by promoting tissue regeneration and helping to draw out toxins, while its aromatic nature helps penetrate through stagnation at the surface.
Envoy — Directs the formula to its target
Shi Chang Pu

Shi Chang Pu

Sweetflag rhizomes

Dosage 30g (one liang in classical dose)
Temperature Warm
Taste Bitter
Organ Affinity Stomach, Heart, Liver

Role in Chong He Gao

An aromatic herb that opens the orifices and channels, resolves Dampness and turbidity, and promotes the movement of Qi. In this external formula, Shi Chang Pu acts as the guiding and harmonizing agent, using its penetrating aromatic quality to help the other herbs reach deep into the affected tissue and disperse stagnation.

Why This Combination Works

How the herbs in Chong He Gao complement each other

Overall strategy

Chong He Gao is designed for sores and swellings that sit between purely yang (hot, red, swollen) and purely yin (cold, pale, sunken) presentations. The formula simultaneously activates blood, disperses stasis, expels Wind-Dampness, and gently clears Heat to harmonize (冲和) the conflicting yin-yang dynamics of the lesion and encourage its natural resolution.

King herbs

Zi Jing Pi (紫荆皮) serves as the King herb. It powerfully activates blood and disperses stasis while resolving toxins and reducing swelling. In TCM external medicine theory, sores that linger without resolving are understood to involve stagnant blood and blocked Qi. Zi Jing Pi directly breaks through this stagnation, which is the core mechanism underlying the lesion's persistence.

Deputy herbs

Du Huo (独活) and Chi Shao (赤芍) serve as Deputies. Du Huo strongly dispels Wind-Dampness from the muscles and bones, addressing the pathogenic dampness that contributes to the swelling and heaviness of the lesion. Chi Shao complements this by cooling the Blood, clearing mild Heat, and dispersing blood stasis. Together they reinforce the King herb's stasis-resolving action from two angles: Du Huo tackles the Wind-Damp component while Chi Shao addresses the Blood-Heat and stasis component.

Assistant herbs

Bai Zhi (白芷) acts as a reinforcing Assistant. It dispels Wind, reduces swelling, expels pus, promotes tissue regeneration, and alleviates pain. Its warm, aromatic nature complements the blood-moving herbs by helping to draw toxins to the surface and promote the formation of healthy tissue.

Envoy herbs

Shi Chang Pu (石菖蒲) serves as the Envoy. Its strongly aromatic, penetrating nature helps direct the formula's actions deep into the affected tissues, breaking through dampness and turbidity. It harmonizes the overall formula by ensuring the medicinal substances can reach the site of stagnation.

Notable synergies

The pairing of Zi Jing Pi with Chi Shao creates a powerful blood-activating and stasis-dispersing combination that is greater than either herb alone. Zi Jing Pi breaks through stagnation while Chi Shao cools and clears the resulting heat from blood movement. The combination of Du Huo with Bai Zhi and Shi Chang Pu forms an aromatic, Wind-Dampness-dispelling trio that opens channels, penetrates tissue, and expels pathogenic factors from the muscles. The overall formula achieves a balanced, 'harmonizing' effect by combining blood-movers (Zi Jing Pi, Chi Shao) with Wind-Dampness-expellers (Du Huo, Bai Zhi) and an aromatic penetrator (Shi Chang Pu).

How to Prepare

Traditional preparation instructions for Chong He Gao

Grind all herbs into a fine powder and store in a sealed porcelain container to preserve the volatile aromatic properties. When ready to use, mix the powder with scallion (green onion) decoction to form a paste, or alternatively combine with fresh ginger juice and vinegar to create a spreadable consistency. Apply the paste to the affected area, spreading it onto paper or cloth and cutting a hole at the center to expose the sore's head. Replace the application once daily.

The classical text instructs: grind the herbs to fine powder, store in a porcelain bottle that must not leak air (以瓷瓶收贮,不可泄气). For application, mix with scallion-head decoction (葱头煎汤调搽) and apply topically.

Common Modifications

How practitioners adapt Chong He Gao for specific situations

Added
Huang Qin

9-12g, to clear Heat and reduce toxin

Lian Qiao

9-12g, to clear Heat-toxin and disperse swelling

When the sore shows more yang characteristics (bright redness, heat, pain), adding Heat-clearing and toxin-resolving herbs strengthens the formula's ability to address the Heat component while maintaining its blood-activating and Wind-dispelling actions.

Educational content — always consult a qualified healthcare provider or TCM practitioner before using any herbal formula.

Contraindications

Situations where Chong He Gao should not be used or requires extra caution

Avoid

Pure Yang-pattern (yang zheng) sores and abscesses with pronounced redness, heat, and rapid suppuration. Chong He Gao is designed for half-Yin, half-Yang or Yin-pattern lesions; applying it to fully Hot, Yang-type lesions may worsen the condition.

Avoid

Open, ulcerated wounds with profuse purulent discharge. This formula is intended for the initial stage of sores that have not yet fully suppurated or ulcerated.

Avoid

Known allergy or sensitivity to any of the ingredients, particularly Bing Pian (borneol/Long Nao) or Ru Xiang (frankincense) and Mo Yao (myrrh) in the variant formulation.

Caution

Application on large areas of broken or highly inflamed skin, as aromatic penetrating herbs like Shi Chang Pu and Long Nao may cause excessive irritation.

Caution

Patients with significant Qi and Blood deficiency. While the formula addresses local pathology, it does not tonify the underlying constitution. Practitioners would typically combine it with internal tonifying formulas when deficiency is present.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

Contraindicated during pregnancy. Several ingredients raise concern: - Long Nao/Bing Pian (borneol) is a strongly aromatic, penetrating substance that traditional texts caution against in pregnancy. - Chi Shao (red peony root) activates Blood and may promote uterine circulation. - Du Huo (pubescent angelica) disperses Wind and moves Qi, traditionally avoided in pregnancy. - In the variant formula, Ru Xiang (frankincense) and Mo Yao (myrrh) are Blood-moving substances explicitly cautioned during pregnancy. Although this is a topical formula, the aromatic and penetrating nature of its ingredients means some systemic absorption is possible. Pregnant women should avoid use unless specifically directed by a qualified practitioner who has weighed the risks.

Breastfeeding

Use with caution during breastfeeding. As a topical formula, systemic absorption is limited but not negligible, especially with aromatic penetrating ingredients like Long Nao (borneol) and Shi Chang Pu (acorus). There is no specific classical prohibition for breastfeeding, but the possibility of small amounts of active compounds entering breast milk through transdermal absorption cannot be ruled out. If used, it should be applied to areas away from the breast and in limited quantities. The Ru Xiang and Mo Yao variant should be used with particular caution, as these resins have stronger pharmacological activity. Consult a qualified practitioner before use.

Children

Chong He Gao is a topical formula and may be used in children with appropriate caution. Children have thinner, more permeable skin than adults, so absorption of active compounds (especially the aromatic Long Nao/borneol) may be greater. The area of application should be kept small and exposure time limited. It is generally not recommended for infants under 1 year of age. For children aged 1-6, application should be brief and closely monitored for any skin irritation or allergic reaction. Always test on a small area first. A qualified pediatric TCM practitioner should supervise use.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Chong He Gao

As an externally applied topical formula, Chong He Gao has limited systemic absorption and therefore poses fewer drug interaction risks than internally taken formulas. However, several considerations apply:

  • Anticoagulant and antiplatelet medications: Chi Shao (red peony), and in the variant formula Ru Xiang (frankincense) and Mo Yao (myrrh), have Blood-activating properties. If applied over large areas or broken skin in patients taking warfarin, heparin, aspirin, or clopidogrel, there is a theoretical risk of enhanced local bleeding or bruising.
  • Topical medications: Do not apply simultaneously with other topical preparations (medicated creams, ointments, or patches) on the same area, as the aromatic penetrating agents in Chong He Gao (especially Long Nao/borneol and Shi Chang Pu) may alter the absorption rate of other topical drugs.
  • Allergic sensitization: Patients using topical antibiotics or anti-inflammatory creams should be aware that combining them with herbal plasters may increase the risk of contact dermatitis.

Usage Guidance

Practical advice for getting the most out of Chong He Gao

Best time to take

Apply once daily, changing the dressing each day. Best applied in the morning after cleaning the affected area. Mix fresh with ginger juice and vinegar immediately before each application.

Typical duration

Applied daily until the lesion resolves or significantly improves, typically 5-14 days for acute presentations. Reassess if no improvement after 7 days.

Dietary advice

While using Chong He Gao topically for sores or abscesses, dietary support is important for healing. Avoid cold and raw foods, greasy or deep-fried foods, shellfish and seafood (which are considered "hair-trigger" foods, or fa wu, that may aggravate sores), spicy stimulating foods like chili and strong alcohol, and fermented or preserved foods. Favor easily digestible, warm, and nourishing foods such as congee, steamed vegetables, lean protein, and mild soups. Classical TCM surgical texts, particularly Chen Shigong's tradition, emphasize that the Spleen and Stomach must be well-supported during the healing of external lesions.

Chong He Gao originates from Wai Ke Li Li (《外科理例》, Exemplary Cases for External Medicine) by Wang Ji (汪机) Míng dynasty, 1531 CE

Classical Texts

Key passages from the classical Chinese medical texts that first described Chong He Gao and its clinical use

From the Gu Fang Hui Jing (《古方汇精》卷二):

The formula is indicated for: 外症初起,坚肿色淡 ("External lesions at the initial stage, with firm swelling and pale coloration"). This describes the classic presentation of a half-Yin, half-Yang sore: firm and swollen but lacking the bright redness of a pure Yang-pattern lesion.

Commentary from the Ci Xi Guang Xu Yi Fang Xuan Yi (《慈禧光绪医方选议》):

The text notes: 此方与《外科正宗》冲和膏不同,无独活、赤芍、菖蒲,而用乳香、没药、甘草,除湿之力轻,而活血通络之力重,是其特点。 ("This formula differs from the Wai Ke Zheng Zong version of Chong He Gao: it lacks Du Huo, Chi Shao, and Chang Pu, and instead uses Ru Xiang, Mo Yao, and Gan Cao. Its Dampness-dispelling power is lighter, while its Blood-activating and channel-opening power is stronger. This is its distinguishing characteristic.")

This commentary highlights how different versions of the formula shift emphasis between dispelling Wind-Dampness and activating Blood circulation, depending on clinical need.

Historical Context

How Chong He Gao evolved over the centuries — its origins, lineage, and place in the broader tradition of Chinese medicine

Chong He Gao has its origins in the rich tradition of Chinese external medicine (Wai Ke). The name "Chong He" (冲和), meaning "harmonious blending" or "balanced accord," reflects its therapeutic strategy of treating lesions that are neither purely Yang (hot) nor purely Yin (cold) but somewhere in between. This concept of the half-Yin, half-Yang lesion is central to classical Chinese surgical thinking.

The formula exists in multiple versions. The version recorded in the Gu Fang Hui Jing (《古方汇精》卷二, "Collection of Ancient Formulas") contains Chi Shao, Bai Zhi, Fang Feng, Du Huo, Long Nao (borneol), and Shi Chang Pu. A different variant appears in the Ci Xi Guang Xu Yi Fang Xuan Yi (《慈禧光绪医方选议》, a collection of medical formulas from the Qing imperial court for Empress Dowager Cixi and Emperor Guangxu), which uses Zi Jing Pi, Ru Xiang, Gan Cao, Bai Zhi, and Mo Yao in equal parts. This court variant shifts the emphasis from Wind-Dampness dispelling toward Blood-activating and channel-opening actions.

The formula belongs to the broader tradition exemplified by Chen Shigong (陈实功, 1555-1636), the great Ming dynasty surgeon who authored the Wai Ke Zheng Zong (《外科正宗》, 1617). Chen emphasized that external diseases always have internal roots, and that treatment must address both local pathology and systemic constitution. The concept of classifying external lesions by Yin-Yang character and selecting topical formulas accordingly was a hallmark of this school of thought.