I woke up this morning with a very swollen left eye. My eyelid, not my actual eye, hurts pretty bad when I blink or touch it, especially the corner. I've put ice on it but it's not helping. Besides that my eye is pretty good, it's not red and I can see out of it fine.
I'm hoping it's just something in my eye and it will go away by itself. Any ideas what it may be? WebMD is not being helpful.

Thank you!