Retro/Para Pharyngeal Cellulitis/Abscess

Most likely pathogens

Duration of therapy

10 days including oral conversion to Amoxicillin-Clavulanate when afebrile for 24-48 hours

Cefazolin 16-33 mg/kg/dose IV q8h
Maximum: 6 grams/24h

PLUS

Metronidazole 10 mg/kg/dose IV q8h
Maximum: 500 mg/dose

Cefazolin 16-33 mg/kg/dose IV q8h
Maximum: 6 grams/24h

PLUS

Metronidazole 10 mg/kg/dose IV q8h
Maximum: 500 mg/dose