Many treatment programs in Sigel, Illinois address persons with co-occurring mental and substance abuse disorders. A person who struggles with a mental disorder(s) and substance abuse needs to work through both issues concurrently. Failing to tackle the client's psychological disorder(s) during their drug rehabilitation will leave them susceptible to relapse once they leave treatment. Issues with mood disorders, anxiety disorders and other psychiatric disorders (schizophrenia, personality disorders, etc.) will surface once back in their day to day life. If the individual does not have a handle on how to manage their mental disorder they will most likely fall back into their old ways of abusing drugs or alcohol as a means of coping and self-medicating.