回复总结：猫咪耳朵外侧皮肤变黑，可能是猫癣和马拉色菌混合感染导致的。治疗方面，建议给猫咪使用宠物专用消炎杀菌的外用喷剂，一天一次，连用14天，之后停7天，再用14天。另外，也可以给猫咪服用含有伊曲康唑成分的药物，口服药可能痊愈得更快，也不会导致皮肤毛囊受损。注意，口服药物有一定的肝脏副作用，需要定期监测肝功能。
问题大致一样，细节不同？
郭秋萍
执业兽医师
由于您在提问里面没有描述您家宝贝的基本情况以及您的问题，您现在可以先详细的描述一下。包括但不限于1.给我讲一下宝贝的基础信息，像是品种、年龄、体重、是否绝育等2.宝贝现在都有哪些疾病症状？（若有视频可以上传来我看看）3.它这样子多久了？4.是否在线下动物医院就医过？（若有检查报告可以以照片形式传上来我看看）5.是否用过药？用药的详细情况都讲一下。
最开始去给猫咪检查，宠物医院说耳朵里面马拉色菌感染，有棕色脏东西附在耳朵上面，开了***，用药之后越来越严重，耳朵下面因为药流出来猫咪频繁抓，抓伤之后开始变黑，又去检查，猫藓感染，让耳肤灵停药，开了7天****，其他药说不让用了，没有好转，皮肤越来越黑，耳朵里面也是很脏，自行买了***滴耳液滴耳朵，脏东西有好转，***洗耳朵外面瘙痒明显变少，猫咪也不怎么抓了，就是皮肤黑色变浅，洗不掉范围变大，我现在了就是不清楚猫咪到底是什么感染，黑色的怎么一直不掉最后一张图是现在的样子，黑色变浅了
为保护用户隐私不显示图片/视频
郭秋萍
执业兽医师
从你的描述来看，猫咪的皮肤变黑，一方面是因为皮肤疾病破坏了皮肤的正常结构，另一方面，也是最主要的方面是药物刺激造成了黑色素沉着。
这种黑色素沉着，一部分会在用药停止或者皮肤病好转后，逐渐恢复，一部分可能永久出现黑色素沉着了。
至于耳朵以及周边皮肤的感染，确诊是需要做耳道镜检和皮肤刮片镜检，真菌培养来诊断的，不知道有没有做这方面的检查？
从你描述来看，我推测，它的耳道多半是马拉色菌感染，皮肤可能是猫癣感染，也可能马拉色菌混合猫癣感染。
耳朵里面现在很干净，外面皮肤是黑的，硼酸冰片和洁尔阴可以继续用吗，在黑色区域在宠物医院做过刮片是猫藓感染
为保护用户隐私不显示图片/视频
郭秋萍
执业兽医师
猫咪耳朵里面很干净，就说明耳朵里面没有问题了。
外面皮肤刮片确诊是猫癣，那就是猫癣。
你提到的****对猫癣是没有治疗效果的，所以没有必要使用。****是人用洗剂也不建议给猫咪用，因为猫咪的皮肤和人的皮肤不一样，很容易导致皮肤二次伤害。
它目前这种状态，你可以给它局部擦***，一天一次，连用14天，停7天，再用14天。也可以什么外用药也不擦，直接口服****。口服药可能痊愈的更快，而且也不会导致皮肤毛囊受损。不过口服药物有一定的肝脏副作用，需要定期监测肝功能。
郭秋萍
执业兽医师
根据小白的情况，我给它开个处方。处方里面的
1. ***，一天两次，喷于患处，避免流入耳道
2.****，一天两次，一次半片，吃7天，停7天，再吃7天，为一个疗程，可能需要2-3个疗程。
郭秋萍
执业兽医师
不推荐使用***，他会加重局部的皮肤发黑。尤其是单纯的特比萘芬成分的喷剂，或者添加有地塞米松成分的混合喷剂。
医生建议及处方根据当前病情给出，仅适用于本次问诊
蘑菇宠医处方笺
用法用量需根据患宠的年龄、体重等信息开具，此处方暂不展示
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