A clear runny nose belongs to wind-cold flu. Wind-cold cold and wind-heat cold both have symptoms such as chills (fear of cold), fever, nasal congestion, runny nose, head and body pains, etc. However, wind-cold cold with runny nose is mostly clear nasal mucus, in addition, there are also systemic symptoms such as chills are heavy, fever is light, no sweating, thirst is not present, tongue coating is thin and white, urine is clear, and the pulse is floating or floating tight. Wind-heat colds and flu runny nose is mostly yellow pus and turbid snot, but also can be seen fever heavy cold light, sweating, thirst, sore throat, cough phlegm thick, thin yellow tongue, short red urine (urine volume, color dark yellow), floating pulse and other systemic symptoms. Cold symptoms need to go to the hospital in a timely manner, after the doctor to identify the standardized treatment, individuals should not self-diagnosis or blind use of medication, so as not to cause adverse consequences and delay the condition.