NEVER go to a 12 step call or to "help" a fellow alkie who is actively drinking alone. Find someone to go with you. Even when she/he's sober, take a friend. It's too easy to get sucked into drinking with them.
As said, you can only carry the message. Leave them alone and let them reach out to you. They are also capable of calling and finding their own rides to meetings. Tough love.
Detoxing regularly is a sign things aren't going too well, but that person is not yet ready to stay stopped.
Get to a meeting, say hello to the newcomer who needs a smile and a talk!