I want to try that tube thing. Or put it right in her veins. If that fails, then Stefan's suggestion. Mixing it in to food.
In the meantime, she needs to stop raging at the world. Whatever that takes. Or people that don't know of her illness will start to fight back against her, so she'll fight more and more and you know what the end result is.
She's too weak for this. She shouldn't even be walking about right now