To ensure that drug rehab is available to persons with co-occurring mental health problems, Partial Hospitalization drug rehab centers in Annandale, Virginia can provide treatment in particular hospital and mental health clinic settings for those in need of rehabilitation. Partial Hospitalization the name for this type of drug and alcohol treatment facility, because the person takes part in drug and alcohol treatment during the day and will then go home at night for about seven days a week. This is why these drug and alcohol treatment programs are also referred to as Day Treatment. Partial Hospitalization drug treatment centers deal with substance abuse problems and psychological issues simultaneously in order to ensure that the treatment client won't relapse once drug rehab is complete.