In an effort to make drug rehab can be available to persons with co-occurring psychological disorders, Partial Hospitalization drug and alcohol treatment facilities in Alton can offer rehab in special hospital and mental health hospital facilities for individuals who need treatment. Partial Hospitalization is the term used for this type of drug and alcohol treatment facility, due to the fact that the person takes part in drug and alcohol rehab during the day and will then return home in the evening up to seven days per week. For this reason these drug and alcohol treatment centers are also known as Day Treatment. Partial Hospitalization drug rehabilitation programs help clients deal with drug and alcohol addiction problems and mental health problems at the same time in order to ensure that the individual won't relapse once drug and alcohol rehab is done.