To ensure that drug and alcohol treatment is available to those with co-occurring mental health issues, Partial Hospitalization drug rehab programs in Somis, CA. can deliver treatment in special hospital and mental health clinic facilities for individuals who need treatment. Partial Hospitalization is the term used for this sort of drug and alcohol rehab program, because the individual takes part in drug and alcohol treatment in the day and will then return home at night for about seven days per week. For this reason these drug rehabilitation programs are also called Day Treatment. Partial Hospitalization drug treatment programs deal with drug and alcohol addiction problems and mental health disorders concurrently so that treatment staff can make sure that the treatment client won't fall back into drug use the moment drug treatment is done.