This document discusses common pediatric infections, focusing on acute otitis media (AOM) and acute bacterial sinusitis (ABS). It provides diagnostic criteria and treatment guidelines for AOM and ABS according to evidence-based clinical practice guidelines. Key points covered include common pathogens, initial antibiotic treatment options, and non-antibiotic approaches for managing symptoms. Review questions at the end test the reader's understanding of diagnosing and treating these common pediatric infections.