 Intervention and sampling method: All patients diagnosed with OM will be approached for study enrolment within the hours which an RA is available. Tympanometry will be conducted on every participant in both ears. The clinician will not be privy to the result of the tympanogram. The tympanograms will be assigned a B or AC shape, upon review by the principle investigators. In cases of disagreement a third reviewer will review the tympanogram. Patients will be followed with a phone call in 3 days and again at 8 days. They will be asked to rate their symptoms Acute Otitis Media-Severity of Symptom Scale18, in addition to specific scripted interview questions for the study under development including a determination of antibiotic usage for the infection. The investigators will also review the provincial pharmacy database to confirm if antibiotics prescriptions were filled. 