The different substance abuse rehab programs which are accessible to drug and alcohol addicted people in Delavan, Illinois can vary in a lot of different ways. Some substance abuse rehab services take place in a residential or inpatient setting, where clientele reside the entire time they are in treatment which provides a more conducive treatment environment. Others offer drug and alcohol abuse rehabilitation services on an outpatient basis which provides a sense of flexibility, although outpatient programs are not always an appropriate drug and alcohol abuse treatment program for men and women in Delavan, Illinois who are having difficulties with serious addiction issues. Whether or not inpatient or outpatient alcohol and drug abuse treatment programs are chosen, there are also different amounts of time that people will be asked to remain in the drug rehabilitation program. For example, many short-term programs provide services for 4 weeks or less, while long-term facilities will require at least a 90 day stay.