my 21months old boy keeps scratching his scalp. there's no dandruff nor the scalp is scaly. but he sweats a lot. please advise.

A. It Can be some kind of an allergy associated with sweat only since you are saying that there is scaling there is sweating I think that is one of the basic reasons why your child is having too much of irritation into the scalp you have to get it checked with the skin specialist ones