Well, she could withdraw from the two classes she is not doing well in and get “W”'s.
If she is in recovery and seeing a counselor, it is possible she could get accommodations (for the future anyway). If at all appropriate- and I don’t know if it is- she could get a medical withdrawal now which would mean losing all her credits, yes, but a transcript without the D,F …or W’s. This requires documentation of course.
If she is in good enough shape to be on campus and not having active mental health issues or physical illness, the medical withdrawal would be tough. It is hard for me to tell from your post.
But she could look into a late withdrawal from those two classes. I don’t know her school’s policies. Some withdrawal deadlines concern refunds and whether or not a “W” appears on the record. Late withdrawal will not mean any refunds.
One of my kids withdrew from a class very late in the game. At first she had a “W” on her transcript but since it was due to a mental health issue, she did get that wiped off.
It helps to register with the disabilities office if she is dealing with recovery from drugs and has any mental health issues that are documented, for the future.
(My kid went to NYC during her medical leave and worked for a friend. It is really hard to tell from your post whether your daughter should leave or if she is starting to be on the mend.)