What is E Bu Shi Cao?

E Bu Shi Cao is a small creeping plant in the daisy family. Chinese herbal medicine uses it mainly to open a blocked nose. The whole plant above the ground is dried and used.

It is a single herb, not a blend. Another name for it is Centipeda herb. Its Latin name is Centipeda minima.

In old practice it is used for a stuffy or runny nose. It is also used for sinus pressure, for headache that sits behind the face, and for coughs.

A pinch of the powder is sometimes sniffed to make you sneeze and clear the nose. The fresh herb is also mashed and put on bruises and swellings.

Here is the honest evidence position. This herb has a long record in one tradition. But nearly all modern research is lab and animal work.

Traditional use tells you what people have done for hundreds of years. It is not proof that the herb works. That point holds for everything on this page.

How does E Bu Shi Cao work?

The clearest effect is simple irritation. The powder is sharp on the lining of the nose. It makes you sneeze and loosens mucus for a short time.

That is likely most of what people notice.

Lab studies point to plant compounds that lower inflammation (swelling and soreness in tissue). The same compounds seem to calm allergy signals in cells. We do not know if this happens in a person at a normal dose.

No mechanism (way of working) here has been shown in human studies. Treat any account of how it works as a fair guess, not a settled fact.

What forms does E Bu Shi Cao come in?

You will meet it in these forms:

Dried whole herb for a decoction (the herb simmered in water as a tea).

Fine powder used as a nasal snuff, taken as a very small pinch.

Nasal drops or sprays sold in China as part of sinus blends, often with other herbs.

Fresh herb, mashed and put on the skin over bruises or swellings.

Granules and pills from Chinese pharmacies. These are usually one part of a multi-herb blend, not the herb on its own.

Where it comes from:

E Bu Shi Cao shows up in Chinese medical writing from the Song dynasty onward. Later herb books also describe it, such as the Ben Cao Gang Mu.

Its Chinese name means roughly 'the grass geese will not eat'. That name is a nod to its sharp taste.

Old texts group it with herbs that open the nose and drive out what tradition calls wind-cold. Its main job in tradition has always been the blocked nose.

What does E Bu Shi Cao help with?

• Blocked or stuffy nose: This is the herb's core traditional use and the one with the clearest short-term effect. Sniffing a pinch of powder makes you sneeze, which can briefly clear the nose. No controlled human trial has measured how long that relief lasts or how it compares with a standard decongestant.
• Allergic rhinitis (hay-fever-type nose symptoms): Chinese sinus and nose formulas often include this herb for sneezing, itching and a runny nose. Cell and animal studies show effects on allergy-related inflammation. Human evidence is limited to small, poorly reported Chinese clinical series, so we cannot say it helps more than placebo.
• Sinusitis (infected or inflamed sinuses): Traditionally used, usually in a formula, for thick nasal discharge and facial pressure. It is not an antibiotic and should not replace one. If you have fever, one-sided facial pain or symptoms lasting more than ten days, see a doctor.
• Headache linked to sinus pressure: Classical texts pair the herb with headache that comes with a blocked nose, on the idea that clearing the nose eases the head. There is no human trial evidence for headache of any type.
• Cough with mucus: A secondary traditional use, usually inside a multi-herb decoction. Laboratory work has looked at anti-inflammatory effects in airway cells. No human trial supports using it for cough.
• Bruises and minor swellings (applied to skin): The fresh mashed herb is a folk application for knocks and swellings. Evidence is traditional only. Because it is a daisy-family plant, skin rashes are a real risk, so test a small patch first.

Which foods are rich in E Bu Shi Cao?

This is a medicinal herb, not a food. It is not eaten as part of any normal diet.

What are the side effects of E Bu Shi Cao?

• Intense sneezing right after sniffing the powder
• Burning or stinging inside the nose
• Watering eyes
• Nosebleed from repeated nasal use
• Nausea or stomach discomfort when taken by mouth
• Skin rash, redness or itching where the fresh herb touched the skin
• Allergic reaction in people sensitive to daisy-family plants such as ragweed, chamomile or chrysanthemum
• Wheezing or tight chest in people with asthma after sniffing the powder

Good to know:

Short-term irritation of the nose is expected rather than unusual, and it settles quickly. Allergic skin and airway reactions are the effects worth taking seriously, because this plant belongs to the daisy family, which is a common source of plant allergy. Safety in long-term use has not been studied, and there is no good safety information for pregnancy, breastfeeding or young children.

How much E Bu Shi Cao should you take?

• Recommended daily: No dose has been established by human research. The amounts below are the traditional Chinese ranges and are not a recommendation for self-treatment. Dried herb in decoction: about 4.5 to 9 g per day, simmered in water. Nasal powder: a very small pinch, sniffed once. More than that mainly causes burning and streaming eyes. Skin use: fresh herb mashed and applied as needed. If you are using a ready-made Chinese formula, follow the label and the advice of the practitioner who prescribed it rather than these figures.
• Best time of day: Take a decoction in the morning and evening, warm. Nasal powder is used only when your nose is blocked, not on a schedule.
• With or without food: Take a decoction after food. The herb is sharp and can unsettle an empty stomach.
• Time to effect: Sniffed powder acts within seconds, mostly through sneezing. Any benefit from a decoction, if it comes at all, would be expected over a few days.
• How long to take it: Traditional use is short and symptom-led, usually a few days during a cold or a flare of nose symptoms. Stop once your nose clears. If nothing has changed after about a week, stop and reassess. Long continuous use has not been studied for safety.