ABRS: acute bacterial rhinosinusitis; CCS: clinical severity score; PNSP: penicillin nonsusceptible Streptococcus pneumoniae; IV: intravenously; ID: infectious diseases; ORL: otorhinolaryngology; IM: intramuscular.
¶ If vomiting precludes administration of oral antibiotics, can administer ceftriaxone 50 mg/kg IM for one dose (maximum dose 1 g), followed by amoxicillin-clavulanate 24 hours later.