The diverse drug and alcohol abuse rehab services which are accessible to drug and alcohol addicted people in Mc Shan can vary in several various ways. Some drug and alcohol abuse rehabilitation services are conducted in a residential or inpatient setting, where individuals reside the entire time they are in rehab which provides a more therapeutic rehab setting. Others offer alcohol and drug abuse treatment services on an outpatient basis which allows for more versatility, although outpatient centers may not be an appropriate alcohol and drug abuse rehabilitation service for men and women in Mc Shan who are having difficulties with long term drug addiction problems. Whether or not inpatient or outpatient substance abuse treatment services are chosen, there are also different lengths of time that men and women will be expected to remain in the drug and alcohol treatment center. For example, some short-term programs provide services for 4 weeks or less, whereas long-term facilities will demand at least a 3 month stay.