The treatment group (50 cases) was treated by QXT (composed of Cornu Saigae Tataricae, Gypsum Fibrosum, Folium Isatidis, Flos Lonicerae, Fructus Forsythiae, Herba Tataxaci, Radix Scutellariae, Radix Paeo-niae Rubra, Radix Glycyrrhizae, etc. )

• 治疗组50例以清热泻火汤(由羚羊角、石膏、大青叶、金银花、连翘、蒲公英、黄芩、赤芍、甘草等组成)治疗,对照组44例以西药利巴韦林片治疗。