Hi hotpeppers, and welcome to SR!
If your wife's drinking is a problem for you, then it's a problem. Best case scenario: you relay to her that it scares you for her health and she agrees and stops drinking. Worst case: you relay to her that it scares you for her health and she doesn't stop drinking.
You can plan for both scenarios, but do know that you cannot force your wife to to anything she doesn't want to do.
If she says no, or even says yes but continues to drink, what are your plans?