笔者曾遇药物腐蚀性耳损害2例,特报告如下。例1:女,32岁,教师。思者因右耳反复流脓20余年,于1978年10月由当地医院配制“轻粉散”吹耳,吹药后顿觉耳内烧灼感,继则剧痛难忍,伴发右侧偏头痛。持续至次日,早晨发觉口眼歪斜,患耳内流出血性分泌物。即赴当地县医院,诊断为右侧“轻粉腐蚀性面瘫”。并予局麻下施行右侧乳突根治术,术中见右侧乳突腔内有2×2×1厘米胆脂瘤组织,骨桥部上鼓室外侧壁可见8×6×5毫米大的圆形游离死骨,而神经骨管水平骨质腐蚀,面神经呈灰白色坏死,听小骨完全腐蚀。术后疼痛消失,但面瘫无改善。2月后又行右侧面神经探查 I have encountered two cases of corrosive drug ear damage, special report is as follows. Example 1: Female, 32 years old, teacher. Siji because of repeated episodes of pus in the right ear more than 20 years, in October 1978 by the local hospital preparation of “powder powder” blowing ears, blowing medicine after ear burning sensation, followed by the painful, accompanied by the right side headache. Continued until the next day, morning I found mouth kinks, suffering from bleeding ear secretions. Go to the local county hospital, diagnosed as the right “light pink corrosive facial paralysis.” And under local anesthesia to implement the right mastoidectomy, intraoperative see the right mastoid cavity with 2 × 2 × 1 cm cholesteatoma tissue, bone bridge lateral drum wall can be seen on the 8 × 6 × 5 mm large Circular free sequestrum, while the level of bone calcification of the neural tube, the facial nerve was gray necrosis, complete hearing of the small bone corrosion. Postoperative pain disappeared, but facial paralysis did not improve. After 2 months and right facial nerve exploration