Purulent otitis media can be treated with 3% hydrogen peroxide to clean the pus from the external ear canal, but antibiotics are also needed to fight the infection. Purulent otitis media is a purulent inflammation of the mucous membrane of the middle ear, including acute purulent otitis media and chronic purulent otitis media. Acute suppurative otitis media is mainly caused by bacterial infection, and chronic suppurative otitis media develops from acute suppurative otitis media, and the treatment is mainly anti-infection. When the tympanic membrane perforation occurs, the symptoms of pus in the ear can appear, you can use 3% hydrogen peroxide to clean, wipe dry and then use antibiotic treatment. Commonly used antibacterial drugs are levofloxacin, chloramphenicol, etc. Pus can be taken for drug sensitivity test, and then adjust the drug according to the results of drug sensitivity. The use of hydrogen peroxide should be carried out under the guidance of specialists to avoid blind self-use and adverse reactions.