As swelling from the cold subsides, the blockage normally fixes. If your child has certain problems, your kid's medical professional might suggest a treatment to drain pipes fluid from the center ear. If your youngster has repeated, long-term ear infections or constant liquid buildup in the ear after an infection cleared, your child's doctor may suggest this procedure. An instrument called a pneumatically-driven otoscope is frequently the only specialized device a medical professional requires to detect an ear infection.