let her take longer baths... My ducks get to be in the tub for over an hour everyday, and that will give her plenty of time to flush out her bill/eye. They make an antibiotic ointment you can put on the eye, but the name is escaping me, starts with a t....
Saline will not hurt her, but it might make her uncomfortable. She's probably really stressed from all the excitement, so keeping her warm and with the lights down will help keep her calm. She probably was developing a cold (my ducks get them too, including the weird breathing), when some over anxious drake pecked her while trying to do her thing... the eye is probably getting clogged with mucus and drying out. If you have a humidifer, place that by her crate, and that should help. Can you see through her nostrils by chance? they may help you figure out how clogged it is up there. Also, giving her a few baths maybe once in the mid morning or afternoon and once before bed will help too. I recommend for water, you get her a tall coffee mug. I did this with my ducks when she was sequestered. you'll have to change it twice a day, but it gives her more water to clear her nose out and clean her eye. you can buy powdered vitamins (either the kind for animals from the feed store or the kind for babies without iron) and add it to her water. Extra vitamins help.
Also, to keep her eating, offer her greens, peas, corn, and cat/dog food to keep up her appetite. Those tend to be ducky favorites. If she won't eat but will drink, you can mash up the cat/dog food into water making a soup for her.
