A 8-year-old boy recently experienced itchy and painful ears, accompanied by excessive yellow earwax and headaches with fever. Question: What should be the diagnosis and treatment for pediatric otitis media with purulent discharge?

A 3-year-old girl, just started kindergarten, has been constantly tugging at her ears and complaining of itching. Additionally, her earwax is a bit thick and yellowish, and she also has headaches and fever. How should otitis media with purulent discharge in children be treated effectively?