The different alcohol and drug abuse rehab services which are accessible to drug and alcohol addicted people in Collinsville can differ in many different ways. Quite a few drug and alcohol abuse rehab programs are offered in a residential or inpatient setting, where clientele reside for the duration of their rehab which provides a more conducive rehabilitation environment. Others offer substance abuse treatment services on an outpatient basis which provides a sense of flexibility, though outpatient programs may not be an appropriate substance abuse rehab program for people in Collinsville who are struggling with serious drug addiction problems. Whether inpatient or outpatient alcohol and drug abuse treatment services are selected, there are varying amounts of time that individuals will be required to continue to be in the drug rehabilitation program. For instance, quite a few short-term programs offer programs for 30 days or less, while long-term centers will require at least a 90 day stay.