Addiction is a chronic illness like heart disease, high cholesterol or high blood pressure. People with these chronic diseases are prone to relapse. Because substance abuse affects many aspects of a person’s life, multiple forms of treatment are often required. For most, a combination of medication and individual or group therapy is most effective. Medications are used to control drug cravings and relieve severe symptoms of withdrawal. Therapy can help addicted individuals understand their behavior and motivations, develop higher self-esteem, and cope with stress. Other treatment methods may include hospitalization, therapeutic communities, and outpatient programs.