Wow.
I would just hand her the number to local AA and tell her I think she needs this.
Now.
And then just step off.
What can you do? Nothing. Until she sees the insanity of her ways herself and decides enough is enough she will not change.
Maybe as Rebecca4 suggested, I would print out a simple list of the effects of FAS (fetal alcohol syndrome) and hand it to her with the number to AA. Two slips of paper. No explanation necessary.
Peace to you - this is so disturbing I'm sendng a prayer your way too...
:praying
B.