
Exposure and Response Prevention
Exposure and response prevention, or ERP, is a specialized form of cognitive behavioral therapy and a first-line psychological treatment for OCD. See the International OCD Foundation ERP guide for a patient- and family-facing overview.
Treatment often begins with education and a detailed assessment of obsessions, compulsions, mental rituals, reassurance seeking, avoidance, triggers, and functional impairment. The clinician and client may then create an individualized exposure hierarchy made up of thoughts, images, sensations, objects, or situations that trigger OCD-related distress.
During exposure practice, the person gradually approaches an agreed-upon trigger while working to resist the usual compulsion, avoidance behavior, or neutralizing response. Exposures may involve real-life situations or thoughts and images.
ERP should be collaborative and paced according to the person's needs. Family members should not invent exposure exercises, surprise the person with triggers, physically prevent rituals, or attempt to conduct ERP without clinical guidance.
ERP may be delivered through weekly outpatient sessions, telehealth, an intensive outpatient program, a partial hospitalization program, or residential treatment. The appropriate format depends on severity, safety, previous treatment response, access, and the person's ability to practice skills between sessions.







