咨询描述：身上有几个地方有黑色的斑 它自己挠 好像是痒
回复总结：狗狗身上出现皮肤发黑应该和蜱虫叮咬有关。如果狗狗有被蜱虫叮咬的情况，蜱虫叮咬会分泌毒素进入皮肤内和体内，对于周围的皮肤也有损伤，主要表现在毒素的作用引起皮肤炎症，从而引起皮肤变黑的情况。可以给狗狗口服具有消炎抗过敏以及止痒作用的药物，同时再进行一次体内外驱虫处理。
问题大致一样，细节不同？
陆文健
执业兽医师
照片上狗狗皮肤黑色的部位，似乎是没有掉毛，您根据现场看到的情况确认一下。根据您目前提供的信息，还不能做出进一步的判断。我还有几个问题需要向您了解一下：
1、身上所谓黑色的斑具体分布在哪些部位？有黑色斑的皮肤都没有掉毛吧？
2、狗狗挠痒痒是挠黑色斑的部位？还是全身挠痒痒？
3、这种出现黑色斑的现象发生有多长时间了？发展快不快？
4、狗狗最近一次外驱是什么时间？使用了什么驱虫药？
以上这些情况您仔细回忆后详细的描述给我，对我给狗狗目前情况做判断以及制定治疗方案有非常大的帮助，感谢您的配合。
没有掉毛 它只挠黑斑的位置 黑色的斑是这半个月慢慢长起来的 前几天身上有那种虫子 黑色的 和小蜘蛛差不多 头能扎进它皮肤里 都让我给拔出来了 最近一次驱虫是这个月1号 使用的是***驱虫药 外驱
陆文健
执业兽医师
您说的那个小蜘蛛黑色的虫子是蜱虫。
1、当时您是怎么把小虫子拔出来的？有没有先试用酒精把小虫子麻醉后拔出来？还是直接拔小虫子？
2、小虫子头部当时有没有留在皮肤中？
3、现在发黑的部位是不是有小虫子的部位？
4、狗狗精神状态和食欲有没有异常？
还需要核实一下，狗狗皮肤发黑是在身上出现小虫子（蜱虫）叮咬前还是叮咬后？
陆文健
执业兽医师
我把您的狗狗皮肤发黑的问题分析如下：狗狗皮肤主要症状是局部发黑，而且是在比较多的部位出现，没有掉毛，但有瘙痒。
1、从照片来看，不像是真菌感染（狗癣）导致，真菌感染也可以在多部位发生，也有瘙痒，但一般会出现掉毛现象，皮肤可能会出现发红、有皮屑、湿疹状红点、也会有发黑，但真菌感染的皮肤发黑和您的狗狗的皮肤发黑不一样。
2、也可以排除黑色棘皮症，这种皮肤病也会出现掉毛、皮脂分泌过多、皮肤粗糙、瘙痒等症状。
由于狗狗有被蜱虫叮咬的情况，蜱虫叮咬会分泌毒素进入皮肤内和体内，对于周围的皮肤也有损伤，主要表现在毒素的作用引起皮肤的炎症。所以我的判断您的狗狗皮肤发黑应该和蜱虫叮咬有关。
给您的治疗建议是：
1、口服****，消炎抗过敏、止痒；
2、再进行驱虫一次，可以使用*****内外兼驱虫药物。
下面我给您的狗狗开个处方，供您参考。
陆文健
执业兽医师
建议处方：
1、**，一次口服0.5片，一天1次，连用3-5天；
2、************滴剂（犬用），≤4kg：0.4ml×1支，滴于犬背两肩胛骨之间到臀部皮肤上，可分3～4处给药。
您可以根据需求自行选择购买。
请用药3天后复诊，根据您的狗狗的恢复的情况再来考虑是否需要调整治疗方案，有问题可随时在线联系。
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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