What Is Cong Bai (Scallion)

Cong Bai is the bulb near the root of scallion, which is a perennial herb belonging to Liliaceae. It can be used for food and medicine.

Scallion is also known as Allium fistulosum, Welsh Onion, Bunching Onion, Green Onion, or Spring Onion.

Cong Bai is widely used in East and Southeast Asia and is the main ingredient of some medicated meals and dishes. Around 681 BC, the Chinese started planting Scallion.

In any season, people can pick Cong Bai, remove the fibrous roots, leaves, and outer membrane of Scallion, and use it directly.

Cong Bai contains protein, sugars, fats, carbohydrates, carotene, malic acid, phosphate sugar, vitamin B1, vitamin B2, vitamin C, iron, calcium, magnesium, and volatile components.

According to <Shennong Ben Cao Jing>, the medicinal property of Cong Bai is relatively warm, with a spicy taste. It has a certain therapeutic effect on the pathological changes of the lung and stomach meridians.

In Chinese medicine, Cong Bai is often used to treat fever, headache, abdominal pain caused by the slight wind-cold, and has detoxification and laxative effects.

Health benefits of Cong Bai (Scallion)

  • Anti-inflammation, anti-pathogen, and anti-cancer.
  • Stimulating the upper respiratory tract slightly and dispelling phlegm.
  • Stimulating sweat gland secretion, promoting sweating, and relieving fever.
  • Nourishing the stomach, promoting the secretion of digestive juices, and improving appetite.
  • Dispelling cold and relieving the cold pain and fatigue caused by yin sheng.
  • Supplementing yang and treating shaoyin disease caused by heart-kidney yang deficiency.
  • Treating neurosis and intercostal neuralgia caused by stagnation and backflow into the lungs of liver qi.
  • Treating fever, headache, stuffy nose and cough caused by slight wind-cold.
  • Treating skin ulcers, furuncle, acute mastitis, and eliminating local swelling.
  • Treating abdominal pain caused by ascariasis and having diuretic and laxative effects.
  • Inhibiting diphtheria, tuberculosis, dysentery, staphylococcus, streptococcus, and skin fungi.

Cong Bai is used with other Chinese herbs

Side effects of Cong Bai

Cong Bai can be eaten directly. Long-term overdose of it may cause some chronic and stubborn disease.

Precautions of Cong Bai

  • The dosage of Cong Bai should be controlled at 3-10g.
  • It can be made into a decoction or mashed for external use.
  • People with exterior deficiency or hyperhidrosis should not take it.
  • It should not be taken with Feng Mi (Mel), Di Huang (Radix Rehmanniae) or Chang Shan (Radix Dichroae).

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