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夏日好发皮肤病荨麻疹

来源:华人健康网 | 发布时间:2011-03-30 08:50:40 | www.chinesejk.com

 荨麻疹就是一种过敏性皮肤炎,有急性、慢性两种型式,临床表现出突发性、散在性的一颗颗红色疹子,也可能是一大片的红色肿块,数目、形状、大小不一,身体任何部位都可能发生,而且来得快去得也容易,变化多端,所以又称为风疹。

  发作时非常痒,严重一点会侵入深部皮肤使眼睛、嘴唇肿胀,形成血管水肿。

  荨麻疹的致病原因就是体质敏感,当吃到、吸进或接触到某些特定物质,会引发体内产生过度化学反应,刺激到血管造成血管扩张,渗透性增加而引起水肿;此外会增加一些化学物质的分泌,这些物质会刺激到神经而引发痒感,这就是荨麻疹。


(编辑:小米 )

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