The tongue coating of wind-cold and wind-heat will show obvious difference in clinic, the tongue coating of wind-cold is usually pale white, and the tongue coating of wind-heat is usually pale yellow. 1. Wind-cold: patients due to external wind-cold caused by a variety of uncomfortable symptoms, the tongue coating will show a pale white tongue, the tongue body reddish performance, at the same time in the pulse will also show the symptoms of floating tight pulse, as well as showing nasal discharge, coughing and vomiting of clear phlegm symptoms. 2. Wind-heat: when the patient is suffering from a variety of discomforts due to wind-heat, the tongue will show yellowish tongue coating, slightly red tongue, and the pulse will also show symptoms of floating pulse, as well as symptoms of yellow nasal discharge, coughing and spitting yellow phlegm. When the patient experiences a variety of discomfort symptoms due to the feeling of an external evil, it is recommended to ask a Chinese medicine practitioner to observe the tongue coating to determine whether it is wind-cold or wind-heat, and to carry out treatment.