How can we get a schizophrenic family member help?

Does she have any income or social security? If she does, you could place her in a nursing facility. You could try to have her declared incompetent to make things easier. She is obviously a danger to herself. I know what it's like to love someone who falls victim to mental disease. It's heartbreaking. I wish you the very best with this undertaking. Please don't let it take a toll on you. It's for her own good. God Bless you for caring about this lost soul.