She’ll probably be fine, outwardly, if she’d put 15 or 20 lbs back on her frame.
However, there will be some level of permanent residual damage. Possible muscle tissue damage, perhaps.
She needs to quit cocktails and nose candy first. Then she needs to eat healthy and hit the gym. It’s amazing that people like her, Keith Richards, and Charlie Sheen live through years of drug abuse, but Len Bias does coke once and dies.