Its very hard to get one to open it's mouth when it doesn't want too, wrap the chicken in a towel that way it's not able to fight you as much, then try to open it's mouth, but you have to be extremely careful not to get the meds down into the lungs, I would suggest dribbling it on the side of it's bill where the upper and lower meet, most of the time they'll drink it that way, and good luck. hope she feels better too and as the other poster said try giving on some sort of food.