Cold with yellow phlegm is generally classified as a wind-heat cold in Traditional Chinese Medicine. Colds are categorized based on the different pathogenic factors involved: wind-cold colds and wind-heat colds. A wind-cold cold is primarily caused by exposure to pathogenic wind-cold, characterized mainly by coughing up white phlegm, feeling chilly but not hot, and a reluctance to drink water. On the other hand, a wind-heat cold follows exposure to external wind-heat pathogens. Its symptoms include feeling hot instead of cold, coughing, yellow phlegm, yellow nasal discharge, sweating, irritability, and constipation. Therefore, the presence of yellow phlegm typically indicates a wind-heat cold. There are many medicinal treatments for wind-heat colds, particularly those that clear heat and detoxify the body, all of which can be used to treat a wind-heat cold.