Method: 100 cases were divided into 2 groups,The infant in the treatment group were given tetralogy of viable bifidobacterium tablets combined montmorillonite powder.

• 方法:100例患儿随机分为2组,治疗组采用双歧杆菌四联活菌片联合蒙脱石散治疗,对照组采用抗病毒加蒙脱石散治疗。