How do I help my mother return?

Hurt Daughter! you are enabling her, Tell her that you love her and want her back into you and your children's life, but that until she cleans herself up, that she is no longer welcome in your home! This is tough love, but you can not do what is necessary to bring her back! Only she can do that and she needs a reason to do it. You must do what is right for your children! Do not continue to expose you children to her!