Children with blisters are considered to have the following diseases: First, chickenpox, which occurs in children, can be caused by varicella zoster virus infection, due to the low immunity of children, the application of famciclovir tablets or acyclovir tablets orally, to strengthen the antiviral treatment, the local can be coated with glycerite lotion, you can also choose to apply acyclovir ointment or spray acyclovir ointment, to strengthen the role of antiviral therapy. Second, hand, foot and mouth disease, can occur in the hands, feet and oral blisters, accompanied by high fever, is due to viral infections, can be oral famciclovir tablets, topical ganciclovir ointment for antiviral treatment.