Eye Ulcers

My senior (16 years old) cat has had eye ulcers for over 6 months now. First, we tried Tobramycin drops and later added Gentak ointment. Her eye ulcers improved, but didn't heal. After doing research, I wondered if she had the herpes virus because 2x a year it seemed as if she had a cold - runny nose, sneezing, crusty eyes and slept a lot. At one point a vet thought she might have allergies. The symptoms seemed to appear when pollen was high in springtime and again during February when mold tends to be higher, so I went along thinking it could be allergies all those years. Last February she appeared to have a "cold" or "allergy flair up" again, but the eye crustiness never got better and instead became much worse. That's when the eye ulcers were discovered. We added Viralys powder to her food and at first she would eat it, then she stopped, so I quit giving it to her because we need her to eat. A couple of weeks ago I took her to an opthamologist who discovered a UTI infection. Vet gave her an antibiotic shot, put her on 250mg of Famciclovir 1x day, and Erythromycin eye ointment. At first she took the pill without trouble, then she became very testy about it. I tried the Viralys again and she tolerated it in her food. Now I am dissolving the  Famclovir in a small amount of water and adding to a small amount of food. She will eat it. She gets the pill in the morning and the other in evening.

In addition, she has hyperthyroidism which has been under control for the past year and stage 2 kidney disease. I realize this is the beginning of the end of a long well lived life. She has gone from 10 pounds to 6-7 in the past 24 months (hence needing her to eat), but her weight has held steady since the thyroid got under control and she has even gained a 1/2 pound back. She seems quite a bit better after the shot for the UTI! 

The eye ulcers remain stubborn, no improvement, but not worse either. Ideas?

Try giving L-Lysine.  I believe you can get a powder which cats eat if you sprinkle it on their food.

I am so sorry midnight is having problems, you are doing everything possible and am sure she appreciates your love & care. I hope things get better. My 4 month kitten has herpes , at least that is what the vet said it could be, not exact diagnosis I was told. But the vet did suggest using l-Lysine .
My kitten is just starting to get better . We tried the erythromycin , gentamycin, and it just doesn't. Clear it up totally . Maybe you could try the lL -Lysine . Good luck to you and midnight