It is quite common for people who are afflicted with a psychological issue to also be plagued by a co-occurring drug and alcohol abuse disorder. In fact, it is more widespread than one would assume and quite a few individuals presently in drug treatment programs in Eureka, IL. may have mental health issues which have just simply been undiagnosed. Treatment professionals at effective alcohol and drug rehab programs in Eureka, IL. know how to spot individuals with co-occurring mental and drug and alcohol abuse issues so that both concerns can be simultaneously addressed while the individual is in rehabilitation. Because both must be resolved, the person should not leave treatment until they are psychologically stable, not just off of drubs.