That is the throuble with having more than one cat. If one gets something, they all get it. What was the inital problem that all of your kitties ended up with the eye "boogers"? I remember when I first fostered "Cupcake" and she had everything wrong with her under the sun, I was petrified that my oldest, Minnie would catch something and not heal due to her age. I had to seclude all of my cats to different areas of the house!!