Sudden eye problem?

While I wasn't home my chinchilla gave birth, I didn't know she was pregnant.. but she had a health baby. Some conflict must have happened, however, as her eye was completely swollen! I used a warm cloth and drained some pus from her eyelids. Her eye has slowly been getting better, and now that she can see out of it it appears enlarged. She's eating and drinking and taking great care of the baby, but I'm frightened her eye could be deadly. She can close it, and I've been putting eye drops in her eye to rinse it (doesnt have antibiotics in it) - I know she can see out of it too.

But, can she be on antibiotics while she's nursing?

I don't have a good chinchilla vet in my town, if I get a checkup and specifically ask for a product they will give it to me (as they have only even seen MY chins before) What should I give her?