Hydrogen peroxide in the ear should not be too long, keep about 5 minutes can be, not only can play the role of disinfection, but also can play the role of flushing. Hydrogen peroxide is often used in acute suppurative otitis media or cleaning of the external ear canal secretions, with hydrogen peroxide rinse can be purulent secretions, earwax or other impurities in the ear to clean out, can keep the ear canal clean. Hydrogen peroxide in the ear should not stay too long, otherwise not only can not play a therapeutic role, there may be the outer ear canal skin or eardrum caused by certain damage, such as the outer ear canal skin or eardrum for a long time by the hydrogen peroxide infiltration will be broken, which triggered the body burning-like pain, so in the use of hydrogen peroxide to clean up the ear canal must be strictly controlled by the time of rinsing.