In an effort to make drug rehab is available to those with co-occurring psychological disorders, Partial Hospitalization drug and alcohol treatment facilities in West Islip, New York can offer treatment in certain hospital and mental health hospital facilities for clients in need of rehab. Partial Hospitalization the name for this sort of drug and alcohol rehabilitation facility, because the individual takes part in drug rehabilitation in the daytime and will then go home in the evening for about seven days per week. This is why these drug treatment centers are also referred to as Day Treatment. Partial Hospitalization drug and alcohol rehabilitation centers address substance abuse problems and mental health troubles at the same time so that treatment staff can make sure that the individual won't relapse the moment drug rehabilitation is complete.