It depends on how much you have been drinking and how long. Usually 3-5 days, but if you've been drinking really heavily, you'd want medical help to detox - some people can risk seizures and DT's. Most symptoms should be gone by day 4. Thiamine and folate supplements, or a B-50 complex would be a good addition while stopping, depending on how long you've been drinking. I know when I quit, immediately changing to a much healthier diet and exercising every day helped tremendously - I felt almost normal in about 2 weeks.
Just my thoughts.