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

不幸的，对于水源性荨麻疹这种极为罕见的水过敏来说，这现实。

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

如果你有日光性荨麻疹，皮肤会在晒太阳几分钟后出现大面积的瘙痒块。

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，同样的过程似乎也会发生，但引发免疫系统异常反应的分子仍然。

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

与日光性荨麻疹几乎立即出现不同，它可能需要几小时甚至几天的时间才会出现， 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，但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。