Poor little Hazel, our Rhode Island Red, has something like bumblefoot which has caused her whole foot to be covered in blackish scabs. She's 6 months old and this has been going on for weeks, because we kept trying home remedies that helped but did not cure. None of our other birds are sick. She sometimes picks the scabs or they crack and she bleeds. I have no idea how she could've gotten this illness in the first place, but I'm pretty sure it's bumblefoot. She drinks a lot of water and has diarrhea only sometimes. She picks all of the corn out of her feed and leaves the seeds(it's a mixture we got from Southern Agriculture), and I noticed that it looks like the seeds are not fully digested when she poos them out. My father in-law gave us some amoxicillin feed he uses for his cattle. We gave her a small handful a day and oh boy she has been having white liquid poo since we started. However, her foot is beginning to heal. I'm worried we might be giving her too much antibiotic. Is this something we should be more careful with? I can't find anything on google about giving cattle antibiotics to a chicken. Or how much to give her. My intent is to continue this treatment for 10 days because her foot is finally healing. As long as I keep giving her plenty of water, will she be safe from death by dehydration? Should I add salt or sugar to her water to make sure she gets enough electrolytes? How much amoxicillin is too much when administered by mouth? Also, we have been letting her have the run of the garage so she has room to run around separately from the other chickens. Before you ask, yes, all potentially hazardous materials are stored up on shelves where she can't reach them. Thanks in advance for your answers!