My cat has four kittens about one week old now. One of them had a yellow crust over one of its eyes, while the other one was beginning to open. I told my dad & while I was upstairs he tried to clean it off of the kitten with warm water and a paper towel, and the kitten was so freaked out meowing really loudly. I didn't want my dad to do it because he wouldn't intentionally hurt an animal, but I'm afraid he may have done it too roughly...the kitten seems fine now, the crust is completely gone but its eye is slightly open now and appears a bit red on the sides...could this hurt her? I'm really worried. Would it damage her eyesight if he did it too roughly? Should I take her too the vet?