I found this hen listless a few days ago. The other hens began to pick on her so I brought her in. She was in the house for 3 days and has been in the garage for 3 days. She seemed to not change much until yesterday after I started giving her an antibiotic. She can still stand but looks a little drunk when she tries to walk. She is still deinking or as least was yesterday and pooping. She was opening her eyes until today. Any ideas?