I have a Cochin bantam hen that was sick with some sort of "chicken cold".I have given her Tylan-50 .25cc for three days the first time waited a week and she was still sick so I gave her a second round of tylan-50 and she still has a little bit of a cough.She has also been given eletro's and vitamin water and she loves yogurt.She acts like she is feeling better but cough's.Does anyone have any good ideas?Would Vet-rx help?I don't want to lose her as my family and I have become very attached to her.