Ephedra and Cinnamomum are often used together to treat wind-cold colds to dispel the cold and remove wind and sweat. For example, there is a famous formula called Ephedra Tang, which uses ephedra, cinnamon branch, almond and licorice, which is a combination of ephedra and cinnamon branch, and plays the role of dispelling the exterior of the body by sweating. Both Ephedra and Cinnamomum can relieve the symptoms of sweating, but they are different in that Ephedra not only relieves the symptoms of sweating, but also calms asthma and diuresis, while Ephedra accelerates the heart rate.