撸猫、嗅花全身瘙痒 皮肤过敏到底是咋回事?

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公开课模版测试文章(编辑别推)

袁卫如

上海交通大学医学院附属瑞金医院皮肤科副主任医师

接触性皮炎的发病原因有哪些?

接触性皮炎的病因可分为两类

一、刺激性接触性皮炎:主要是接触物本身具有刺激性,反应强弱取决于接触物本身的刺激性大小,一般和患者的皮肤类型没有关系,任何人接触后都会发病。

二、变态反应性接触性皮炎:诱发变态反应性接触性皮炎的物质通常没有很强的刺激性,好发人群仅限于有过敏体质的人。变态反应性接触性皮炎的变异源,主要包括动物性(动物的毒毛和分泌物)、植物性(茎、叶以及花粉、果实)和化学性(常见的金属制品、洗涤剂、橡胶制品和药物)这几大类。

撸猫、嗅花全身瘙痒 皮肤过敏到底是咋回事?

常见的过敏原有哪几类?

一、吸入物。吸入的花粉、螨虫等。

二、食物。有的人对牛奶、鸡蛋或鱼虾过敏。

撸猫、嗅花全身瘙痒 皮肤过敏到底是咋回事?

三、接触物。接触一些特殊的物质引起的过敏。

四、注射类药物。注射青霉素、链霉素等药物引起的过敏。

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