Unfortunately, this is reality for people with an extremely rare allergy to water called aquagenic urticaria.

不幸的是，对于水源性荨麻疹这种极为罕见的水过敏症患者来说，这是现实。

If you have a condition called solar urticaria, big, itchy welts develop within minutes of sun exposure.

果您患有日光性荨麻疹，暴露在阳光下几分钟内就会出现又大又的伤痕。

In solar urticaria, that same process seems to happen, but the molecule that’s causing the immune system freakout is a mystery.

在日光性荨麻疹中，似乎会发生同样的过，致免疫系统崩溃的分子是一个谜。

Instead of showing up almost immediately, like solar urticaria, it can take hours or even days and it sticks around for a while, too.

它不会像日光性荨麻疹那样几乎立即出现，而是可能需要数小时甚至数天， 并且还会持续一段时间。

While you obviously can't avoid an element that covers 70% of the planet and falls from the sky, people with aquagenic urticaria have to take some serious precautions when carrying out basic everyday tasks.

虽然您显然无法避免一种覆盖地球 70% 并从天而降的元素，患有水源性荨麻疹的人在执行基本的日常任务时必须采取一些严肃的预防措施。