Your skin colour will change
Not in a bad way, but for the better. When you drink, the alcohol disrupts the blood circulation, which leads to a lack of oxygen in the skin. As a result, it gets dry and less elastic, which makes you prone to pigment spots and early wrinkles.
Getting off the sauce won’t cure the damage already done, but it’ll make your skin pliable, tighter and better hydrated. Plus, it’ll help with irritation and acne.