This is a curative formula traditionally used in Chinese households as a specific remedy for curing colds, flu, and other bronchial ailments of the "cold type." (This phrase denotes those bronchial ailments accompanied by chills rather than fever. Since the tea is a warming yang formula, it should not be used for colds accompanied by fever.) It is also an effective therapy for "stomach colds" accompanied by diarrhea, for nausea and motion sickness, and for chronically cold hands and feet.
Adapted from A Spoonful of Ginger: Irresistible Health-Giving Recipes from Asian Kitchens by Nina Simonds.