Sorry that she is still doing poorly. Enteritis, if that is what she is suffering from, is hard to treat. The antibiotic used needs to be specific for what bacteria is causing it, and getting a vet involved to do a gram stain on her droppings may help. Clostridium perfringens is a common bacteria in the soil that can cause it, and many antibiotics including the penicillin you have already used is sometimes used to treat it. There are other bacteria, so I would consult with a vet. I don't have any experience treating it as some others here on BYC have. I was just wondering if she was vaccinated for Mareks disease? That can make young chickens have a lack of immunity to many common diseases, and could be making her wobbly.
