A young male presents to the clinic with complaints of dysuria and right knee pain. He states that he was in Belize 2 weeks ago and had unprotected sex with a few women. After he arrived back in the US, he started to develop a low-grade fever and right knee pain. He denies any trauma to the knee. He is on no medications and has no allergies. The physical reveals swelling of the right knee with bogginess, erythema, and pain on palpation. There is mild pain in the scrotal area but no discharge is visible. You perform a right knee arthrocentesis and the sample is sent to the pathology lab for gram stain and a smear (see image). How will you manage the patient?
A. Azithromycin and ceftriaxone for at least 7 days
B. Doxycycline and ciprofloxacin for 7 days
C. Penicillin and doxycycline x 7 days
D. Metronidazole and doxycycline x 7 days