The duration of an alcoholic detox can vary depending on the severity of the person’s alcohol dependence and other individual factors. In general, an alcoholic detox can last anywhere from a few days to a couple of weeks. During this time, the person may experience physical and psychological symptoms of withdrawal, such as shaking, nausea, anxiety, and insomnia. It’s important to have medical supervision during an alcoholic detox to manage these symptoms and ensure the person’s safety. After completing an alcoholic detox, ongoing treatment and support are usually recommended to help the person maintain their sobriety.