According to the portal "aponet.de," ear pain in children requires prompt medical attention, ideally within two days, as it often signals a middle ear infection. The portal, which serves as the official platform of German pharmacists, explained that middle ear infections usually develop after a cold or another illness. Pathogens—typically viruses or bacteria—move from the nasal and throat cavity into the middle ear, causing the mucous membranes to become inflamed and swollen. Fluid then accumulates without being able to drain, leading to severe pain and hearing difficulties.
Sources - Agencies