Partial Hospitalization, also known as "PHP" or Day Treatment, is a form of drug and alcohol rehabilitation facility that works to deal with substance abuse disorders and mental health disorders which may possibly be co-occurring. In a PHP center, the individual in rehabilitation participates in a number of rehabilitation services and methods in the day and then leaves in the evening time. This is carried out several days per week, all dependent on the severity of the problem. Partial Hospitalization can be beneficial for drug addicted men and women in St. Louis, Missouri who who may be unable to cover the costs of long-term inpatient treatment, or for those who are unable to be apart from their home for prolonged periods of time. While in Day Treatment, people take part in traditional treatment services for alcohol or drug addiction problems while also addressing psychological problems which may deter them from staying abstinent after rehab is done.