I always keep diluted lavender oil and some cotton rounds to cure my bunnies eye problems. 2 drops in 4 ounces of distilled water. Shake well before application. Just press the saturated cotton round on the bunny's eye for a minute or two. You can also wipe their whole body afterwards. Unless they need an antibiotic cream, this works great. BTW - lavender has natural antibiotic properties.
Hope this helps.