Is there any sort of funding for drug rehabilitation centres and retreats?

My friend desperately needs to get help with her alcoholism. I have found a rehab facility that sounds perfect for her, dealing with underlying issues etc but her family have spent a fortune trying to help her get out of trouble for so many years, they simply cannot afford the $25000 it costs for the six months. What help is available. My best friend is 24 and she is ruining her life, right before my eyes.