Swimming into the water generally does not cause otitis media, may be swimming into the water, at the same time the existence of otitis media, need to determine whether it is classified as secretory otitis media or suppurative otitis media, the former and the latter did not form the tympanic membrane perforation, active treatment of the primary disease. In the case of purulent otitis media with perforation of the eardrum, acute infection may be triggered, and it is necessary to drain the water stored in the ear to promote the drying of the affected ear. If an infection already exists, prompt medical attention is required. A perforated eardrum in suppurative otitis media should first be examined by otoscopy to determine the condition. If the ear is not infected, no treatment is needed, so the water should be drained and the ear should be dried with a hair dryer. If a bacterial infection has occurred, it is necessary to seek medical attention in addition to the above, remove the pus from the ear, clean the ear with 3% hydrogen peroxide, and then use ofloxacin ear drops in the ear. It is best to seek medical attention for this condition and follow the doctor’s instructions for medication and treatment.