A nurse is providing teaching about home care with a parent of a child who has scabies. Which of the following statements by the parent indicates an understanding of the teaching?

"I should apply the cream only to the areas where there is a rash."

"I should wash my child's bed linens and clothing in hot water and detergent."

"I should expect my child's rash to go away within 72 hours after starting treatment."

"I should leave the cream on my child for 4 hours before washing it off."