You see a 6-year-old who obtained a cut on his foot while walking barefoot. You diagnose cellulitis. He is up to date on his DTaP vaccine. There is…

1.     You see a 6-year-old who obtained a cut on his foot while walking barefoot. You diagnose cellulitis. He is up to date on his DTaP vaccine. There is a low-grade temperature and appears nontoxic. There is considerable pain when you palpate the foot. Which of the following treatments is best?