is this a fungal infection? itching is there for the child, can we use Kz soap for this?

A. Hello ma’am There is no picture attach to the query so I don’t know whether it is a fungal infection or a regular infection and I would not advise you to use any medicine or soap to it till the time you’re not sure what kind of infection it is so I would just advise you to consult your paediatrician for a proper checkup as to after that only any medicine or cream can be suggested to you