A 45-year-old woman returns from a camping trip in an endemic area of Ontario and presents with an expanding erythematous rash with central clearing on her thigh and mild flu-like symptoms. What is the most appropriate management?AReassure and observe without treatmentBStart oral doxycycline for early Lyme diseaseCStart intravenous ceftriaxone immediatelyDObtain Lyme serology and wait for results before treatmentETreat with topical antibiotics onlyCheck my answer