I have a three-week old chick with a split on the top of her vent. It looks like someone pecked her; it's a little swollen. It has already started to heal over, but I'm worried that the other chickens will peck at it. Can I put hydrogen peroxide on it, or will that hurt her? I'd like to put some antibiotic ointment on it, too. I will probably try to keep her and her mom and the other chicks separated for the evening. Thanks!