A child has small red macules and vesicles that become pustules around the child's mouth and cheek. Older lesions are crusted and honey-colored. What should the nurse teach the parents about this condition?

Notify the physician for any itching.

Keep the child home from school for 24 hours after starting antibiotics.

Keep the child home from school until the lesions are healed.

Clean the rash vigorously with Betadine three times a day.