If it does happen to be CL, and i don't think it is, bleach or any disifectant ids really not going to work well. CL gets in the ground and stays and is very hard to kill. I don't know if I would bandage the kid up. Goats don't like bandages and even if you wrapped it around her, she could get a foot stuck in it, or chew it off. It could further infect her. Her mother will probably also try to take it off of her. If you can at all, try to keep them (mother brother and her) up away from the rest of your herd. Make sure they have food and water and shelter and a cool place to lay. This will give you a chance to better observe her, make friends with her, and it will help to keep her from infecting the rest of your herd if she is sick. Try to have the vet come out to you if you can to do blood tests and to look at your doeling. (You will have to pay an extra farm call.) If they won't come, take her, her dam, and brother in a trailer to your vet.