The diverse drug and alcohol abuse treatment services which are offered to drug addicted individuals in Lancaster, IL. can differ in a lot of different ways. Some drug and alcohol abuse treatment services are conducted in a residential or inpatient facility, where clients remain for the duration of their rehab which provides a more conducive rehabilitation environment. Others offer alcohol and drug abuse treatment services on an outpatient basis which allows for more versatility, although outpatient facilities are not always a suitable alcohol and drug abuse treatment program for people in Lancaster, IL. who are struggling with serious drug or alcohol addiction difficulties. Whether inpatient or outpatient drug and alcohol abuse rehabilitation programs are chosen, there are also different amounts of time that individuals will be expected to remain in the drug treatment program. For instance, some short-term programs offer services for 4 weeks or less, while long-term facilities will demand at least a 12 week stay.