A CC between 1-2 means that there's something still in your pool consuming your chlorine, and adding people goo to that mixture isn't going to help much. Besides, CC is usually what is responsible for stinging, red eyes.

That being said, you'll probably be okay to swim in it if you keep your eyes closed, and if nobody that's sick gets in the pool, but I would surely raise your chlorine levels at night to try to help bring that CC level down...