Exposure and Response Prevention (ERP) is a well-established therapeutic approach often used to treat anxiety-based disorders like Obsessive-Compulsive Disorder (OCD), and eating disorders. Though the core principles of ERP remain the same for both conditions, there can be differences in how the therapy is applied based on the nature of the disorder being treated. So how does ERP for OCD differ from ERP for eating disorders?
Before we dive in, let’s make sure we have a clear understanding of what ERP therapy actually is.
What is ERP?
At its core, Exposure and Response Prevention (ERP) is a type of Cognitive Behavioral Therapy (CBT) that helps individuals face their fears and anxieties in a controlled and systematic way.
The therapy involves two key components:
- Exposure: This involves deliberately and gradually exposing the individual to feared situations, thoughts, or objects. The goal is to face these fears head-on without avoidance.
- Response Prevention: This means resisting the compulsion or safety behavior that the person typically uses to reduce anxiety after an exposure. The purpose is to break the cycle of anxiety and avoidance, allowing the individual to learn that their feared outcome does not occur, is less severe than anticipated, or if it does occur, that the person can handle it.
In general, ERP helps individuals reduce anxiety and distress over time by showing them that their feared outcomes are unlikely or manageable, and that they do not need to engage in compulsive behaviors to prevent them.
Types of ERP Therapy
ERP can be implemented in various ways, depending on the nature of the anxiety or compulsive behavior. The four main types of ERP are:
In Vivo Exposure Therapy:
This involves directly confronting real-life situations or triggers that cause anxiety. For example, someone with a fear of germs might touch objects that they perceive as dirty and resist washing their hands afterward.
Imaginal Exposure Therapy:
This type of ERP involves imagining or vividly visualizing anxiety-provoking scenarios. It’s often used when the feared situation is difficult or impossible to recreate in real life, such as imagining a traumatic event or confronting a feared thought.
Interoceptive Exposure:
This type targets physical sensations that trigger anxiety. The goal is to create and experience those sensations intentionally, like spinning in circles to induce dizziness for someone with a fear of fainting, to reduce their fear over time.
Virtual Exposure:
Using technology, virtual ERP exposes individuals to simulated situations or environments (like virtual reality). This can be particularly useful for situations where in vivo exposure is too difficult or impractical, such as fears of flying or heights.
Each of these ERP approaches helps individuals face their fears and reduce compulsive behaviors, but the method chosen will depend on the individual’s specific challenges and goals. Exposures can be combined to provide a maximum benefit as well.
ERP for OCD vs. Eating Disorder Treatment:
To effectively implement ERP, there is a specific approach to follow. What I’m sharing here is based on my experience as an ERP therapist and case studies, rather than research.
Planning the Exposure:
ERP for OCD tends to be highly structured. The exposures are generally planned between the client and clinician well in advance. OCD thrives on uncertainty and unpredictability, often amplifying anxiety and compulsive behaviors.
By planning exposures in advance, the process becomes more structured and predictable, helping clients gradually face their fears without adding extra distress from unexpected situations. Knowing what to expect can reduce anticipatory anxiety and allow clients to mentally prepare.
In the case of ERP for eating disorders, the approach can sometimes be more flexible. This means that sometimes, especially for food-related exposures, we may intentionally incorporate “surprise” exposures—such as an unplanned meal or snack. This unplanned nature helps prevent the client from doing compensatory disordered eating behaviors in anticipation of the exposure, which would defeat the purpose of the exercise.
Example: If a client is preparing for an exposure like eating at a restaurant, they might restrict their food intake the day before, or morning before, to “prepare” for the experience. To counteract this, a clinician might purposefully not share the specific details of the exposure in advance to avoid preemptive compensatory behavior.
Use of Coping Skills:
In standard ERP for OCD, coping strategies such as distraction or distress tolerance techniques are generally discouraged during exposures. This is because coping behaviors—whether they involve distraction, calming techniques, or other safety-seeking behaviors—can become part of the compulsive cycle.
ERP for OCD is about learning to tolerate the anxiety without doing anything to reduce it. The key goal is to allow the anxiety to naturally decrease over time without engaging in behaviors that might “short-circuit” the learning process.
In contrast, when working with eating disorders, there are situations where using distress tolerance or distraction skills during food exposures may be appropriate. For example, some clients may find it incredibly difficult to sit with the discomfort of eating a certain food or experiencing the urge to engage in compensatory behaviors (like purging or exercising).
In these cases, temporary coping strategies might be introduced to help the client manage their distress and prevent a harmful response, while still ultimately confronting the fear. These skills can be part of the broader treatment plan but are used with caution and only in the context of the exposure to reduce risk. Over time, as the client practices these exposures, they will rely less and less on coping strategies, allowing them to move toward habituation and greater comfort with the experience.
Example: A client with ARFID (Avoidant/Restrictive Food Intake Disorder) is doing an exposure with a new food in session. While they work through the anxiety of eating the food item, the therapist may introduce a distraction technique, such as talking about a topic the client likes to talk about, to help manage the acute distress of the moment.
Frequency of ERP Sessions:
For both OCD and eating disorders, research supports the idea that ERP should be practiced consistently for it to be effective. Studies show that the most effective results come from doing exposures at least three times a week. Less frequent exposure, such as only once a week, has shown to be less effective in both OCD and eating disorder treatment.
Additionally, research has shown that doing more than three sessions per week does not yield greater improvement. The key is consistency.
Treatment Expectations and Timeframe:
For clients with OCD, the goal is often to see tangible progress by session 12. ERP treatment for OCD tends to be more straightforward in its expectations: after a set number of exposures, clients should experience a reduction in their compulsions and a better ability to tolerate anxiety. If progress is not made after 12 sessions, clinicians may explore adding medication or transitioning to different therapeutic techniques.
With eating disorders, progress can be less linear and more nuanced. Clients may encounter challenges or temporary fluctuations in symptoms as they work through deeply ingrained patterns related to food, weight, and body image. In these cases, ERP is often one component of a broader, multifaceted treatment plan that includes nutritional support, body image work, sometimes family therapy, and more.
Get Started with ERP for OCD or Eating Disorders
While Exposure and Response Prevention (ERP) is a powerful and evidence-based approach for treating both OCD and eating disorders, it’s not one-size-fits-all. At Coastal Collaborative Care, we tailor ERP to your specific needs—whether that means a highly structured plan for OCD, or a more flexible approach for eating disorder recovery. Regardless of the specific approach, the key is consistency and confronting fears head-on.
No matter where you are in your healing journey, our team is here to help you face your fears, build confidence, and reclaim your life from anxiety and compulsions.
Learn more about our therapy services for OCD
Explore our inclusive, body-positive eating disorder treatment
Want to know if ERP is right for you? Contact us today to schedule a free consultation and take the first step toward feeling better.
You deserve support that understands you—and therapy that actually works. We’re here when you’re ready.
About The Author
Gabrielle “Gabby” Katz is the owner of Coastal Collaborative Care and a Licensed Clinical Social Worker (LCSW). She is also an approved LCSW supervisor for clinicians pursuing clinical licensure in Virginia & DC. Gabby earned her Master of Social Work (MSW) from the University of Pennsylvania (UPenn).
Gabby provides virtual therapy in Virginia, Maryland, Washington, D.C., and throughout the country. She offers in-person sessions at the Old Town North Alexandria office.
Due to her extensive experience working in eating disorder treatment centers, she received the designation of Certified Eating Disorders Specialist and Approved Consultant (CEDS-C) from the International Association of Eating Disorder Professionals (iaedp). She is qualified to provide consultation to clinicians seeking certification in eating disorder specialty through iaedp.
