Alcohol detox is the process of ridding the body of excessive amounts of alcohol toxins. The actual detox process can last from a few days to a week+. Detox basically means to rid the body of toxins. Depending on how much and for how long one has been drinking, the length of time it takes to entirely rid the body of alcohol can vary. From a few days to several months. From experience as an alcoholic and due to the progression of the disease of alcoholism, the period of time increases as the disease progresses.