<p>Prior to the beginning of therapy, the ear-drum should be checked by the physician. If there is a risk that perforation of the ear-drum may occur, this ear drops should not be used. If no improvement occurs within about 1 week, the therapy should be discontinued. It is then advisable to identify the pathogens and to institute an appropriate treatment. This ear drop should not be allowed to come in contact with the conjunctiva.</p>