I Have A Family Member I Am Worried About. She

I have a family member I am worried about. She suffers from depression, insomnia and constipation. In a recent visit, I noticed she would be missing for a half hour to an hour at a time. After one such time spent in my bathroom, I found spilled was and soot, along with cuts on the flat top of my face cream. What is she doing?
What can I do to get her help?