When a child coughs after a cold, is it a hot cough or a cold cough? Here is a simple way to differentiate, which is to observe the child’s tongue. If the tongue is white, it is a wind-cold cough, which means the child is cold and has thin, white, sticky phlegm and a stuffy, runny nose. If the child’s tongue is yellow-red, the child has a wind-heat cough, which indicates that the child has greater internal heat, and the cough has thick yellow phlegm that is not easily coughed out, and a sore throat. Most coughs from internal injuries are prolonged, recurrent coughs, at which time parents should pay attention to giving their children foods that regulate the spleen and stomach, tonify the kidneys, and nourish the lung qi.