What type of burn do we start fluid resuscitation?

At what percentage surface area of burn and at what type of burn do we start fluid resuscitation?

I guess for minute amount only, oral fluids can manage.

Otherwise IV fluid resuscitation is mainstay.

10% in children and 15%in adult with 2nd degree burn onwards

10% in children and 15%in adult with 2nd degree burn onwards

thank you sir