When a child catches a cold, it indicates that the child has an acute upper respiratory tract infection. About 90% of acute upper respiratory tract infections are caused by viral infections, and approximately 10% are caused by bacterial infections. It is important to actively deal with a child's cold. If a child experiences ear pain during the cold, it is essential to take the child to an otolaryngologist to check their ears, as acute otitis media is the most common complication after a cold. The child may develop acute serous otitis media, and if not promptly treated, it can lead to rupture or perforation of the eardrum. Therefore, it is crucial to rule out otitis media when a child with a cold experiences ear pain. If otitis media is ruled out and the child still has ear pain, it may simply be a symptom of the cold.