Many treatment programs in Pembroke Township, Illinois address people with co-occurring mental and substance abuse disorders. A person who struggles with a psychological disorder(s) and substance abuse requires to work through both issues simultaneously. Failing to address the client's psychological disorder(s) during their drug rehabilitation will leave them vulnerable to relapse once they leave treatment. Troubles with mood disorders, anxiety disorders and other psychiatric disorders (schizophrenia, personality disorders, etc.) will come up once back in their day to day life. If the client does not have a grip on how to manage their mental disorder they will probably fall back into their old ways of abusing drugs or alcohol as a means of coping and self-medicating.