Thank you for your query.
I understand your concern.
Your child is having a skin problem.
Maintain good hygiene and regularly clean the scalp
with a mild shampoo.
Give him an antiallegic for 5 days.
ointment on the lesions thrice daily for 5 days.
Kindly consult a dermatologist
if the lesion persists.
If you have any further queries you are free to consult me.Hope this answers your query.Wishing your child a speedy recovery.Have a nice day.