Many rehab programs in Dieterich, Illinois address individuals with co-occurring mental and substance abuse disorders. A client who struggles with a mental disorder(s) and substance abuse requires to work through both issues simultaneously. Failing to tackle the client's psychological disorder(s) during their drug treatment will leave them vulnerable to relapse once they leave treatment. Problems 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 handle 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.