Well, generally speaking, crossing eyes occurs to many people, and it can be annoying. According to some people, crossing eyes are the medical terms for eye conditions commonly called eye turns, strabismus. It can be related with some other eye problems, such as eyestrain, blurry vision, double vision, and headaches. And for the causes, crossing eyes can be caused by injury to the eye orbit. And at the same time, injuries to the brain, such as with a stroke or head injury can lead to strabismus too. So you should check these with your own situation. To get rid of it, I will suggest you go and see the eye doctor. And maybe you need to have the surgery.
It is really strange for you to get crossing eyes. Your eyes may get infection because of the coming invisible bacterium. You need to use the eye drops with anti-inflammation to release the symptom. Your eyes may get moisture and get comfortable. There is another good way of home remedy. That is warm compress which could also have a try.