A hiker develops an expanding erythematous annular rash (6 cm) with central clearing and flu-like symptoms after a tick bite in the Northeast US. Best...

Question

A hiker develops an expanding erythematous annular rash (6 cm) with central clearing and flu-like symptoms after a tick bite in the Northeast US. Best treatment?

Accepted Answer

Doxycycline 100 mg BID for 10 days

Answer

Amoxicillin 250 mg TID for 3 days

Answer

Ceftriaxone 2 g IV daily for 28 days

Answer

No antibiotics; observe

Answer

Prednisone taper

us-abfm MCQ (SBA): Lyme Disease (Erythema Migrans)

A hiker develops an expanding erythematous annular rash (6 cm) with central clearing and flu-like symptoms after a tick bite in the Northeast US. Best treatment?