Acute otitis media is a middle ear infection caused by bacteria from the nose or throat entering the middle ear. The main causes are cold, allergies, sinusitis, tonsillitis, etc. Otitis media is the most important cause of hearing loss in children. If the inflammation is not treated promptly and effectively, the eardrum will be perforated and pus will flow out from the external ear canal, and most children show ear pain, chills, fever and distress. Acute otitis media has many complications and can cause hearing loss if not treated properly, so parents need to pay great attention to it and take their children to regular hospitals in time, and they will usually be cured without leaving deafness and other sequelae.