The first symptoms of alcohol withdrawal often show up within hours of the last drink, sometimes before someone even realizes detox has started. How long the whole process takes is a fair question, and the honest answer is that it varies. Someone who drank heavily for years will have a different timeline than someone whose drinking is more recent. Still, the medical stages of alcohol withdrawal are well understood. This article walks through what to expect, day by day, so you or your loved one knows what is coming.