A13-year-old girl comes to your clinic stating she has been having fever and chills for three days, and aching muscles for the last two days. she states she has also had a mild cough, but is not having any difficulty with breathing. she is up to date on vaccines and her only other medical history is having her tonsils and adenoids removed last year. on physical exam, you find her temperature to be 102.6 degrees f, pulse 96, and her bp to be 108/62 mmhg. she has clear rhinorrhea and her oropharynx is mildly erythematous. the rest of her physical exam is normal, and a rapid strep test in the office is negative. what is the next best step in management?