my hen was attacked by other hens nine days ago. did alot of damage to head and neck. have been feeding with a tube buttermilk,olive oil,cooked oatmeal and yogurt. she seems to be healing no sign of infection but she shakes her head alot and her balance is off. she is opening her eyes now but sleeps alot. she won't make any effort to eat or drink. am i on the right track ? what else can i do?