Hello Girls, don't sit too strictly and could you please tell me abou…

Hello Girls, don't sit too strictly and could you please tell me about boys hygiene? My son's head is red and itchy. In general, I think about cleaning it 2-3 times a day. Today I found out that the scalp needs to be opened and cleaned, but the surgeon said it can't be opened in general, opinions have divided into two. How do you maintain hygiene for boys?