Types of ear drops commonly used in otitis media mostly refer to suppurative otitis media, 2% glycerol carbolic acid ear drops can be used before tympanic membrane perforation, and ofloxacin ear drops can be used after perforation. 1. Before tympanic membrane perforation: use 2% glyceryl carbolic acid ear drops, with anti-inflammatory, pain-relieving effect, the product meets the pus that is the release of carbolic acid, can corrode the tympanic membrane and the tympanic mucous membrane, when the tympanic membrane is perforated and stop the drug immediately. 2. After perforation of tympanic membrane: Ear drops such as ofloxacin, 3% boric acid ethanol glycerol, 3% boric acid ethanol, 5% chloramphenicol glycerol and so on can be used to carry out anti-infective treatment. After the infection is completely controlled and the inflammation subsides, the perforation of the tympanic membrane in some patients with acute onset of disease can heal on its own. At the onset of otitis media, it is necessary to use reasonable medication under the guidance of a doctor, so as not to aggravate the condition.