What is Cong Bai Qi Wei Yin?

Cong Bai Qi Wei Yin is a warm herbal drink from Chinese medicine. In English it is called Scallion Drink with Seven Ingredients. It is handled as one single formula, not as seven separate products.

It was made for the first day or two of a chill or a cold. It was aimed at people who were weak, tired, or low in blood. Old texts name fever, chills, a sore head, and dry skin with no sweat.

One part of the drink is aged rice wine, so the finished drink holds alcohol. That matters more than the herbs do for safety. It shapes who can take it and what drugs it clashes with.

Human trials of this formula are missing. Its place rests on long use in one tradition, not on proof. Long use is not proof that something works, and that point holds for every section below.

How does Cong Bai Qi Wei Yin work?

No one has shown in people how this drink works. What follows is how it is thought to act, not proven fact.

Chinese medicine says the scallion and the dried ginger warm the body. Both are said to push out a chill caught from cold wind. The fermented soybean is said to help the skin open and sweat a little.

A light sweat was the goal. A heavy sweat was seen as harmful in a weak person.

The last herbs were added to guard the body's fluids. Rehmannia and Ophiopogon are said to cool and moisten. Healers used them so that sweating would not dry out someone who had lost blood.

In lab dishes, ginger and scallion show mild effects on germs and on swelling. Alcohol makes you feel warm for a short time. None of that tells you what happens inside a sick person.

What forms does Cong Bai Qi Wei Yin come in?

The classic form is a decoction. You simmer the herbs in water and wine, then drink the warm liquid.

Some makers sell it as granules that you stir into hot water. Ready-made pills and bottled drinks are rare.

The formula is not a common shop item in the West. Most people who take it get it from a trained Chinese medicine practitioner. Home mixing is not a good idea, since the herb amounts and the wine both need care.

Where it comes from:

The formula comes from the Zhou Hou Bei Ji Fang, an emergency handbook written by Ge Hong in China. That places it near 340 CE, in the Eastern Jin period.

It was listed as a fast fix for a chill caught by someone already weak. Later Chinese texts kept it and taught it as a teaching example of how to sweat a frail person safely.

It stayed within Chinese medicine. It was never picked up by other healing traditions.

What does Cong Bai Qi Wei Yin help with?

• Early-stage common cold with chills: This is the main traditional use. Texts say to give it in the first day or two, while you still feel cold and shivery. No human trial has tested the formula against a placebo (a dummy treatment), so we cannot say it shortens a cold.
• Headache and body ache at the start of a chill: Old texts list a tight, sore head as a sign the drink suits. There is no trial evidence for pain relief. If your headache is severe or sudden, see a doctor rather than treat it at home.
• Fever with no sweating: The formula was built to bring on a light sweat when a fever is stuck and dry. Once you sweat, the classic advice is to stop taking it. A fever that climbs or lasts past three days needs a doctor, not a herbal drink.
• Chills in someone weak after blood loss (traditional use only): This was the case the formula was written for, such as after heavy bleeding or childbirth. We have no modern evidence for this use at all. Anyone weak after blood loss should be checked by a doctor first.
• Dry mouth and thirst during a chill: Rehmannia and Ophiopogon were added to keep the body from drying out during sweating. This is a traditional idea, not a tested one. Plain water works for thirst and carries no risk.

Which foods are rich in Cong Bai Qi Wei Yin?

1. Spring onions and scallions: the same plant as Cong Bai
2. Fresh and dried ginger: the source of Gan Jiang
3. Miso and natto: fermented soybean foods, close to Dan Dou Chi
4. Rice wine used in cooking: the source of Lao Jiu

Practical Tips:

Eating these foods is not the same as taking the formula, and no food version has been tested.

What are the side effects of Cong Bai Qi Wei Yin?

• Warm flushing in the face and neck
• Feeling sleepy or unsteady from the alcohol
• Heartburn or a burning stomach from the ginger
• Loose stools or stomach ache
• Strong onion breath and body smell
• Heavy sweating if you take too much
• Rash, itching or swelling if you are allergic to soy, onion or garlic

Good to know:

Most reports of trouble are mild and settle once you stop. The ginger and the alcohol cause most of them.

The real risk is not the herbs on their own. It is the alcohol meeting the wrong person or the wrong drug. Read the list of people who must avoid it before you try this.

How much Cong Bai Qi Wei Yin should you take?

• Recommended daily: No safe or useful dose has been set by any trial. What follows is the traditional range, not a recommendation. Classic texts give roughly three whole scallion whites, 6 g of dried ginger, 15 to 30 g of fermented soybean, about 18 g of fresh Rehmannia, and about 25 g of Ophiopogon. These are simmered in water with a cup of aged rice wine, then strained. The liquid is usually split into two or three warm cups. A trained practitioner should set the real amount for you, since the herbs and the alcohol both need adjusting to the person.
• Best time of day: Taken warm during the day, spaced a few hours apart. Avoid it near bedtime if the alcohol makes you sleepy or restless. Do not drive after a dose.
• With or without food: Take it after food. Ginger and alcohol on an empty stomach can burn or upset it. Sip it slowly rather than drinking it fast.
• Time to effect: Old texts expected a light sweat within a few hours of the first cup. There is no tested time to effect, because the formula has not been trialled.
• How long to take it: This is a short-term drink, not a daily tonic. Traditional use is one to two days at most. The old rule is simple: once you sweat lightly, stop. If you feel no better after two days, stop and see a doctor.