Seems like my hen has been getting sick on and off. At one time, she was pretty bad, very puffy, messy bottom, little energy, pale comb, green watery poop, laying in nesting box. Brought her inside and treated her with penicillin. Then stopped and treated her for vent gleet and worms. Doing the vent gleet and worm treatment brought her back to 100%. We put her outside, and she roosted one or two nights, then she was back in the nesting box. Her bottom was getting a little messy again, but her comb looked fine, she wasn’t puffy. We started vent gleet treatment again. She seemed to be ok, but still not roosting. Even if we picked her up and put her by the poles, she would just sit on the floor. We stopped the vent gleet treatment, and she seemed fine, still sleeping in the nesting box. We have noticed one of the chickens bites her here and there. Sometimes will pick at her bottom and will bite her comb hard. She was doing this when the sick chicken was her worse. We thought she was doing this cause she knew the other hen was sick, but when we thought the hen was 100%, she was still getting picked on it seemed like. After a few days of being ok and just sleeping in the nesting box, she’s now a little pale, very quiet, tail down a little bit. Basically, I don’t no what else to do, I’m at a loss. This was my first time owning chickens, I started out with 5 and now have 3. I don’t no if that’s an issue? I think it’s time for me to rehome them, give them a better home, someone who knows more than I do. I just don’t no. I’m going to bring her in the house tonight and observe. I know someone won’t take a sick chicken and the other one who is picking on the sick chicken. Anyone have any idea of what’s happening?