The so-called eczema infection often refers to the combination of bacterial and fungal infections on top of eczema, and some patients have a combination of viral infections, which is a relatively common phenomenon in the clinic. The reason is that sometimes eczema patients have skin damage in more intimate areas, such as the scrotum, perineum and vulva, which are prone to eczema, as well as the anus, which is prone to eczema, and these areas are prone to bacterial infections because they cannot keep the local skin clean and dry for a long time. For some children, if the eczema is not well controlled, it can be combined with viral infections on top of the original skin damage, and in clinical situations children can be combined with herpes simplex virus infections.