I have to segregate one of my hens from the rest of the flock because she is recuperating from an illness. I just happened to finish a growing pen so I moved her there. She is by herself and that worries me a bit because I know chickens are social animals and need company. I cannot add another hen to the pen because she is taking antibiotics in the water and I don't want the other hen to drink from it. She will have to be isolated for 21 days to finish the antibiotic course. Since I am new with chickens I would like to know how much harm does it cause a chicken to be separated for so many days. I know she will have to go thru hell when I put her back with the others to reestablish her position in the pecking order. Anything I could do to help the situation? Any help will be appreciated.