Cang Er San
蒼耳子散 (Cāng Ěr Zǐ Sàn)
A classical formula for nasal congestion and runny nose due to wind obstruction of the orifices, commonly used for sinus-type presentations with thick or clear discharge and frontal headache.
Explore how Traditional Chinese Medicine traditionally understands allergic rhinitis through different patterns, associated symptoms, and classical formulas.
Explore the Allergic Rhinitis Condition Profile →
Last reviewed Sep 16, 2026| Health Topic | Respiratory Care |
|---|---|
| Chinese Name | 過敏性鼻炎 |
| Synonyms | Hay fever-like rhinitis·Allergic runny nose·Seasonal nasal allergy·Sneezing allergy |
| Description | Nasal symptoms triggered by allergens, including sneezing and runny nose. |
| Related TCM Patterns | Wind-Cold·Qi Deficiency |
| Related Classical Formulas | Cang Er San·Yu Ping Feng San·Xin Yi San·You Bi Tang |
Allergic rhinitis is sudden bouts of sneezing, itchy nose, clear watery mucus, and stuffiness—often with itchy eyes—when wind, dust, pollen, or temperature shifts hit.
Western medicine frames it as an IgE-driven lining reaction and may use avoidance, antihistamines, or nasal steroids. In Traditional Chinese Medicine, this is close to 鼻鼽: the Lung’s defensive Qi is weak, so Wind can open the nose at a touch; Spleen and Kidney deficiency often sit underneath.
TCM does not treat every runny, itchy nose the same way. The same flare may come from:
Care starts with syndrome differentiation, then protecting the neck from wind, warm cooked meals for the Spleen, fewer iced drinks, and trigger reduction you can actually keep—not only short-term drying of mucus.
Seek emergency care first if a flare comes with wheeze, tight chest, swollen lips or tongue, widespread hives, faintness, or real trouble breathing. Seek a clinic review if blockage is one-sided and lasting, or mucus is bloody.

While traditional approaches offer valuable perspectives, certain symptoms call for prompt medical evaluation. Please consult a qualified healthcare professional if any of the following apply.
Allergic rhinitis can easily trigger or mask other serious health complications if left unmanaged. You should seek immediate professional medical care if you notice these red flags:
It is crucial to accurately identify your condition before starting any treatment. Allergic rhinitis is often confused with:
Traditional Chinese Medicine educational content on HJMEDICAL should not be used to delay appropriate medical evaluation.
Traditional Framework
From a Western perspective, allergic rhinitis (hay fever) is identified by a specific set of localized symptoms: bouts of continuous sneezing, a profusely runny nose (with clear fluids), nasal congestion, and an intensely itchy nose.
Traditional Chinese Medicine (TCM) looks at the bigger picture. In TCM, the nose is the direct opening to the Lungs, and its health is closely tied to the Lungs, Spleen, and Kidneys. Allergic rhinitis is not just a local allergy; it is an outward sign that your internal organ functions are out of balance.
External Allergens (The Triggers)
External irritants are the immediate triggers for flare-ups. Common culprits include pollen (especially in spring and autumn), dust mites (hidden in beds and sofas), mold, and pet dander. When these enter the nasal cavity, they spark the allergic reaction.
Internal Organ Dysfunction (The Root)
While allergens are the trigger, your internal environment is the root cause.
Environmental Factors
Your living environment heavily influences your respiratory health. Long-term exposure to air pollution, such as smog, constantly irritates the nasal lining. Additionally, living in spaces that are excessively damp or dry compromises the natural protective function of your nasal cavity, increasing the risk of allergic rhinitis.

Pattern Differentiation
TCM traditionally considers this presentation in relation to the underlying pattern rather than treating every case the same way.
| Pattern | Typical Features | Classical Formula |
|---|---|---|
| Wind-Cold風寒證 |
|
Ma Huang Tang |
| Qi Deficiency氣虛證 |
|
Huang Qi Gui Zhi Wu Wu Tang |
Pattern differentiation is the foundation of TCM. The same presentation can correspond to different patterns, and the traditionally associated formula differs accordingly.
Treatment Principle
When allergies flare up, TCM offers various ways to quickly ease your discomfort:
TCM believes that lasting relief comes from fixing the underlying organ weakness:

Common Anti-Allergy Herbs
Classic TCM Formulas
Herbal Combinations and Precautions
In TCM, herbs are rarely used alone. They are carefully paired to maximize benefits and minimize side effects—for instance, combining Xin Yi and Bai Zhi creates a much stronger sinus-clearing effect. However, herbal medicine is highly personalized. You should never self-prescribe, as taking the wrong formula for your body type can cause adverse reactions. Always consult a licensed TCM professional for a proper diagnosis.

Historic herbal combinations recorded in the classical medical texts.
Cang Er San
蒼耳子散 (Cāng Ěr Zǐ Sàn)
A classical formula for nasal congestion and runny nose due to wind obstruction of the orifices, commonly used for sinus-type presentations with thick or clear discharge and frontal headache.
Yu Ping Feng San
玉屏風散 (Yù Píng Fēng Sàn)
A classical Qi-tonifying formula for deficient exterior with spontaneous sweating and easy contraction of external pathogens. Huang Qi strengthens Wei Qi, Bai Zhu supports the Spleen, and Fang Feng disperses residual wind without damaging the exterior.
Xin Yi San
辛夷散 (Xīn Yí Sàn)
A classical formula for nasal congestion and sinus-type obstruction from wind-cold, with loss of smell and frontal or vertex headache.
You Bi Tang
優鼻湯 (Yōu Bí Tāng)
A nasal formula for stuffy nose and rhinorrhea from wind.
Daily Support
Based on TCM principles, we have consolidated the acupressure and moxibustion techniques to focus directly on the most effective acupoints for relieving allergic rhinitis symptoms:
Ying Xiang
Located right next to the base of your nostrils, this is the premier point for opening up a blocked nose. Use your index fingers to gently press and massage in circular motions for 1-2 minutes until you feel a mild, achy sensation. Regular massage here helps quickly clear nasal passages and relieve severe congestion.
Feng Chi
Found at the back of your neck, in the hollows just below the base of the skull on either side of the spine. Massaging these points firmly with your thumbs for 1-2 minutes helps dispel trapped wind and is highly effective at stopping itchiness and persistent sneezing fits.
Fei Shu and Pi Shu
These points are located on your back (associated with the Lungs and Spleen, respectively). While they can be massaged, they are especially responsive to moxibustion (a warming therapy using burning mugwort). Applying gentle heat to these points for 10-15 minutes helps warm the meridians, dispel deep-seated cold, and strengthen your body's overall immunity against allergens. (Note: Always be gentle, monitor the heat to prevent burns, and avoid pressing on damaged skin.)
Suitable Everyday Foods
Choosing the right foods can actively help rebuild your internal balance. Chinese yam is excellent for strengthening the Spleen and Stomach, which helps reduce mucus production. Red dates (jujubes) naturally nourish your energy and blood, while fresh ginger is perfect for everyday cooking to dispel internal cold and warm up a weak digestive system.
Healing Herbal Recipes
Dietary Habits to Avoid
To keep inflammation down, strictly avoid spicy, deep-fried, and greasy foods, as they create excess heat and make nasal blockages worse. You should also steer clear of known food allergens (like certain seafood or mangoes). Importantly, minimize cold drinks and ice, as they directly damage your Spleen's digestive fire and worsen cold-type allergic reactions.

Prevention
In TCM, the highest form of medicine is preventing illness before it starts. The foundation of this is building a resilient body through moderate, consistent exercise like jogging, Tai Chi, or yoga. These activities boost your heart and lung function, improve energy circulation, and strengthen your baseline immunity against environmental triggers.
Beyond physical fitness, maintaining a stable routine and emotional balance is crucial. Chronic stress and anxiety disrupt your internal environment, making flare-ups more frequent. Prioritize getting enough sleep and find healthy outlets to relax. Pair this internal care with practical external habits: keep your home clean and well-ventilated, minimize exposure to dust mites and pet dander, and always wear a mask when pollen counts are high to protect your weakened Lung energy.
Nong's Cang Er San (Xanthium Powder) 5:1 Concentrated Granules$46.97
Hoi Tin Cang Er Zi San (Xanthium Fruit Powder) 5:1 Concentrated Granules$24.93
Han's Cang Er San (Xanthium Formula) 5:1 Concentrated Granules$49.33
Hoi Tin Yu Ping Feng San (Jade Windscreen Powder) 5:1 Concentrated Granules$23.54
Nong's Yu Ping Feng San (Jade Windscreen Powder) 5:1 Concentrated Granules$56.60
Han's Yu Ping Feng San (Jade Wind Screen Formula) 5:1 Concentrated Granules$59.44
Hoi Tin Xin Yi San (Magnolia Flower Powder) 5:1 Concentrated Granules$30.50
Nong's Xin Yi San (Magnolia Flower Powder) 5:1 Concentrated Granules$51.25Go deeper into the associated patterns, the classical formulas traditionally linked to each of them, and the products available.
Explore the Allergic Rhinitis Condition Profile →Medical Disclaimer — Traditional Chinese Medicine educational content on HJMEDICAL should not be used to delay appropriate medical evaluation. This article is provided for educational purposes only and describes traditional Chinese medicine concepts. It is not medical advice, and it is not intended to diagnose, treat, cure or prevent any disease. Always consult a qualified healthcare professional before starting any herbal formula, particularly if you are pregnant, nursing, taking medication or managing a diagnosed condition.