Peripheral facial palsy is classified as follows: 1. wind-cold attack: caused by wind-cold, it is necessary to dispel wind and dispel cold, and open the channels and ying; 2. wind-heat attack: caused by wind-heat, it is necessary to dispel wind and clear heat, activate blood and open the channels; 3. phlegm-damp obstruction: caused by phlegm-damp body suddenly feeling wind-cold, wind-heat or wind evil, it is necessary to carry out treatment to open the channels and ying on the basis of dispelling phlegm-damp; 4. qi deficiency and blood stasis: caused by qi deficiency and blood stasis, it is necessary to apply drugs to activate blood, resolve blood stasis and open the channels on the basis of tonifying qi.