Results : Etiopathogenisis and pathogenesis are natural endowment weakness, being invaded by exogenouspathogen, blocking meridian, Qi and blood to be on bad terms;
结果：白癜风的病因病机为禀赋不耐，感受外邪，阻滞经络，气血失和；
2
Base pathogenesis of respiratory tract viral infection is phlegm-heat obstruction in the lung, so cooling and dispersing therapy can drive away stagnated exogenouspathogen.