Is she having nasal drainage, sneezing, gasping, or any pus in her eye? Does it smell rotten? She could have a respiratory disease with a sinus infection from MG or coryza. There also could be an eye infection from pecking or a foreign body in the eye. Lastly it could be a tumor, but if she has respiratory symptoms, it is progably one of the two diseases. Sick birds usually don't drink medicated water well, so you might try giving Tylan 50 injectable orally 1/4 ml twice a day for 5 days. Or you could try giving the Terramycin orally in a concentrated form, and make sure that she drinks water.