Need help sick hen

[Happyhenkeeper]

Have a hen that keeps shaking her head, holding her down, keeps closing her eyes. I gave her pol vi sol, bacterium in yogurt , and vex in water. She is stIll punk but alive, been going on for 2 1/2 days nowtt

 

[Happyhenkeeper]

Still alive but not up , still giving vitamins and bacterium but can't seem to get her past the worst. If it is a RI what else can I do?

 

[ten chicks]

Have a hen that keeps shaking her head, holding her down, keeps closing her eyes. I gave her pol vi sol, bacterium in yogurt , and vex in water. She is stIll punk but alive, been going on for 2 1/2 days nowtt

How old is she? How is her poop,eating/drinking? What breed of chicken is she? Have you checked for worms,lice,mites?