What do you mean by this? (Not trying to be rude, sorry if it sounds rude) Do you mean that I drop some drips between her mouth, in her mouth, on top of her bill, below her bill??
Sorry for the confusion.
If she won't drink it in her water, or over treats. Take an eyedropper, or syringe, and drip a few drops on the side of her bill, or physically open her mouth, and drop one or two drops on her tongue.