Prostock-StudioGetty Images Itchy eyes are the worst. Not only do they get red, watery, and irritated, but you also have to (somehow) restrain yourself from rubbing and scratching them. The reason? Your hands have likely been touching all sorts of germ-infested surfaces, like doorknobs and keyboards—and you really don’t want unwashed digits anywhere near your sensitive eyes. To put an end to the agony, you’ve got to treat whatever’s causing the flare up in the first place. There are many things that can cause itchy eyes, from allergies to skincare products, so getting to the root of the problem is key for finding relief.