One month is considered "short-term rehab," and anything longer is considered "long-term rehabilitation." The only distinction between rehab lengths is that treatment is more extensive in short-term rehabilitation because more treatment is being condensed into a shorter amount of time. Unlike inpatient rehabilitation, when you select an outpatient program, each action of the rehab procedure is usually finished at a different facility.When that's completed, the actual therapy can start 90 days is typically a minimum, however lots of people continue seeing a therapist or participating in group therapy for several years. The longer you invest in rehab, the more costly it will be. However, those who have severe dependencies may not get all the help that they need in short-term rehab.