Wind-cold generally refers to wind-cold flu, wind-heat generally refers to wind-heat flu, and cough with thick sputum may be wind-heat flu, which is usually accompanied by sneezing, yellow and sticky sputum, and head swelling and headache. Colds are external diseases of the lung system with fever, cold (fear of cold), nasal congestion, runny nose, sneezing, coughing, headache, general body aches and pains, and other symptoms of the lungs and guards as the main clinical manifestations. It is generally divided into wind-cold and wind-heat cold. Among them, wind-heat colds are characterized by fever, malignant wind, sweating or less sweating, headache, nasal congestion, runny nose, cough, phlegm thick and white or yellow, red, swollen and painful pharynx, crying, restlessness or irritability, thirst, red tongue, thin yellow moss, floating number of pulses or fingerprints of floating purple and other signs of wind-heat symptoms. Therefore, cough with thick phlegm is mostly considered as wind-heat cold. If there is a cough with thick phlegm, it is recommended to go to the hospital in time, after the professional doctor to identify and treat the problem, and under the guidance of the doctor for treatment to avoid adverse effects.