He was attacked by a dog, and there is a gruesome wound on his tail. I don't know what to do because he just sits in the corner and twitches his tail really fast. Its the upper half of his tail that was attacked. I have no idea if he is in shock or not.
Yes he is because that happened to mine but it was another cat. Its in shock because she/he will never forget the frightening thing that happened to then there scared .