Scallion, commonly known as green onion, spring onion, or salad onion, is a small onion with long leaves that are considered a necessity in Chinese recipes, as well as in teas, wine, vinegar, honeys, garlic, and ginger. The green onion's medicinal part is its stem. It works as well as an antipyretic, expectorant, anti-bacterial, and anti-fungal. It is effective against colds, headaches, chills to the stomach, indigestion, and also for insomnia. The white stem contains a lot of glucose and allyl sulfides. Use it is a raw condiment to many foods by finely chopping the fresh white stem.