What to do to help a cat with an eye infection?

I got home from work late and all the vets are closed. Except the 24 hour clinic with a 10+ hour wait time where I'd have to wait in the parking lot and I don't have a car, not to mention that my preferred vet opens in about 10 hours anyways. When I got home, I found that it appears my 3 year old cat has got an eye infection. I'll be taking her to my preferred vet that can help her first thing in the morning, but until then, is there anything I can do to help her out in the meantime?

As for what it looks like, her eyelids look swollen and coupled with her third eyelid on the inside, it appears as though she can't fully open her eye right now. Just her right eye, her left is fine. There's also the occasional bit of discharge which I've been gently wiping away with a clean kleenex. Her behavior hasn't changed from the norm, meaning it's not bothering her too much right now, but I'm still worried.