卡他性中耳炎是临床上最常见的耳病，其发病率高且对听力易造成损害。目前也尚无卜分肯定有效的治疗药物，笔者近年来试用350过氧化氢作鼓室内注射进行治疗，取得了较满意的疗效，现将体会报告如下。1病例资料本组30例（30耳）均系门诊病人。其中男20例，女10例；年龄在8～55岁 Catarrhal otitis media is the most common clinical ear disease, its high incidence and easy to cause damage to hearing. There are currently no effective and effective treatment of BU, the author in recent years to test the 350 hydrogen peroxide for intratympanic treatment, and achieved more satisfactory results, the experience will now report as follows. 1 case data in this group 30 cases (30 ears) are outpatients. Including 20 males and 10 females; aged 8 to 55 years