Often times underneath the addiction is a core mental illness which is not being treated. I assume she is not seeing a psychiatrist now, rather is getting her current script from a GP.
I think this is very wise advice. I suggest to most who inquire that a mental illness evaluation be done on any addict. My personal experience is many times bi-polar or Borderline Personality Disorder can be lurking under the addiction specifically Bipolar II, although it can be a myriad of things.
Depression and anti anxiety meds don't play well with Alcohol especially benzo's which can be deadly when mixed with alcohol.
If you are still in contact I would say to encourage her to go, though I am NOT encouraging you to contact her if you aren't.
Best to stay far, far away.