(HealthDay News) -- Earaches are as common as they are painful and annoying. Factors that can trigger an earache are equally plentiful.
The ADAM Encyclopedia mentions these possible causes of an earache:
Pentagon Drops Flu Vaccine Requirement For U.S. Military
Nasal Spray Flu Vaccines Create 'Battlefield' In Adults' Noses
Holiday Flu Surge Drives Record Illness Across the U.S. — Here's What You Can Do
Moderna’s mRNA Flu Vaccine Back Under FDA Review
They Spent Hours In A Room Full Of Flu Patients And Walked Out Healthy — Here's How