Early this week we noticed on our our birds keeping one eye closed. We initially thought it might be debris or an eye injury and rinsed her eye each day with a saline eye wash. We then noticed it started to swell and develop a white covering that looks like pus to me. She is a bit lethargic but still has energy, is eating and drinking just not as much as normal. Not scratching much at the eye that we see. Took her to a vet who seems to think it was an eye injury. After a very quick exam and brief look in the eye she said the bird will likely lose the eye and gave us an antibiotic and a probiotic. The bird is in quarantine now but we're having some trouble getting the antibiotic in her and the vet didn't have many suggestions. We tried treats like fresh fruit (strawberries from our garden) but that has been hit/miss. We then tried directly in the mouth per the vets advice and that was very tough. I have experience with large animals e.g. sheep/steers but birds are new to me. Any advice on best way to treat this and get her the needed antibiotics? Attached a pic of the bird after we rinsed the eye.