Polysporin Ear and Eye drops are perfectly safe for cats & dogs. It is recommended by vets for mild eye irritations and I have used them on my foster kittens when they haven't quite gotten their coordination yet and are clawing each other in they eyes. However, if the infection gets worse or is bad to begin with, then you would need prescription strength meds.
I have always had to ask the Pharmacist for it as they are kept behind the counter.
Cat maid to:
Puddles, female Himalayan (16 yrs)
Jasper, male Ragdoll ?? (approx 9 yrs)
Sweet Pea, female silver tabby DSH (approx 7 yrs)
Rose semi feral, a cpietra rescue, female tabby (approx 6 yrs)
Snowball RIP (1991-2005)
In a cat's eye, all things belong to cats.-English Proverb
“While we are free to choose our actions, we are not free to choose the consequences of our actions.” Stephen R. Covey