Every alcoholic reacts differently to detox and rehab treatments. Thus, treatment times can vary. The general rule for private rehab is 30 days of residential treatment followed by aftercare. Of those 30 days, anywhere from 7 to 10 are devoted to detox.
Including aftercare in the total time it takes to complete rehab can extend a treatment programme from 30 days to up to 12 months. But really, this is just semantics. The residential portion of alcohol rehab typically takes no more than 30 days. It can be shorter in some cases. Aftercare takes place outside of residential rehab and is typically integrated into the patient’s daily life.