Filme® Oto Ear Cleaning Oil Filme® Oto Oil for cleaning and caring for the ears is recommended for both adults and children to prevent the formation of earwax plugs and to remove them if necessary. Recommended use To prevent excessive earwax buildup, it is recommended to use the oil sparingly three times a week. A small amount should be applied to the ear approximately 30 minutes before showering or bathing. If the oil is used to support the removal of existing earwax, you should start five days before the planned removal. In this case, a squirt is placed in the ear three times a day.