Most of the hard core alcoholics I’ve known drank vodka, which really takes a toll on the body. It’s the devil’s drink.
Tell your friend you love her but you have to step back until decides to get sober. At that point you can step back in to offer support.
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My opinion is with her health situation it’s too late for her to recover, she needs a liver transplant but she will never get one and at Stage 4 Liver cancer I think her time is limited.