Sinusitis (Acute Bacterial) : Mild to Moderate: Symptoms > 10 days or worsens within 10 days

Most likely pathogens

Duration of therapy

7-10 days

Suggested regimen

Amoxicillin 15-30 mg/kg/dose PO TID
Maximum: 3 grams/24h

OR

Penicillin allergy

If the patient has NOT had a previous IgE mediated reaction to amoxicillin:
Cefprozil 15-30 mg/kg/24h PO divided q12-24h
Maximum: 1 gram/24h