It depends on the degree of burn your son has, but typically, we recommend daily antibiotic ointment dressings (apply antibiotic ointment and cover with gauze) for burns with blisters and redness (second-degree burns); try not to pop any blisters. If there are no blisters but redness (1st degree burns), you could treat it by simply keeping it well-moisturized with a non-fragranced lotion for sensitive skin like aquaphor. If the burn is worse than described above or you're concerned for any reason, however, I
would recommend scheduling an appointment with his pediatrician for it to be further evaluated/treated. Hope this helps!