PLE-4689

A 2-year-old male with CF presents to the clinic with fever and a rash. The rash started on the forehead and upper neck and has spread downward to the extremities. It subsequently faded, leaving a fine desquamation. The patient’s 13-month-old brother was exposed to the same illness 4 days ago when their grandmother brought him along to visit. What is the most appropriate management for this situation?