Dog has had an irritated eye since late last week (day after visiting the dog park). We thought it was allergies, but today the other eye is also red and goopy. I have some Similasan Pink Eye Relief for people. It contains Belladonna which I know is used with dogs, but want to make sure it is okay for the eye,Euphrasia which is eyebright which I know is okay for the dog's eyes, and Hepar sulphuris which is sulfur flowers and powdered oyster shells. Is there any reason I shouldn't put this in my dog's eyes?