Poor girl, she doesn't look like she feels well at all
You could try some yogurt, oatmeal, and cooked egg yolk. The probiotics in the yogurt will help re-establish the microbes in her gut, the oatmeal will feed her and the microbes, and the yolk for an extra boost of nutrients and protein.
When you say "medicated water", what exactly do you mean? Antibiotics, or electrolytes? If she's been given an antibiotic for the eye, she shouldn't need more in the water. She would benefit from an electrolyte/vitamin blend in the water, though, and if not, maybe some raw apple cider vinegar should help.
I should mention that I run an antibiotic free flock, so minus the antibiotic, I'm relaying the exact thing I would do in this scenario, assuming that theceye infection is what started it, getting her gut flora back would be my top priority so she can fight whatever it is with a full immune system, and it all starts with the gut flora...
Is she pooping normally?