, viral rash or a bacterial infection. To confirm the diagnosis, I suggest you to get an evaluation done from a dermatologist. In such young children, diagnosis needs to be confirmed first and then specific treatment prescribed.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.