She's an alcoholic. She moved in with a man for a month, no idea who he is, she wouldn't tell me or tell me where she is living. Policeman was banging on my door on sunday saying they had a call from her saying she had been abused, he wanted to know where she was as she stopped answering her phone. I tried to call her but she didn't answer. Later that day I called again and the policeman had found her, he asked if she could stay with me, but I had to say no.
Fast forward to today and she's just got in contact with me saying she's at hospital and she's homeless, hasn't eaten for days, Wants to stay with me for a few days, when I said no she has started begging and then eventually asked for me to pick her up and drop her at a homeless shelter, but I've said no to that as well because I know she will refuse to get out the car when I get there.
What do I do? I don't know if I should help or not. I always feel like this, I just need someone else to tell me what to do or something 
Also, the homeless shelter won't accept her back for months because she got drunk there and evicted.