What Exposure and Response Prevention (ERP) for OCD Actually Feels Like: A Clinician’s Guide for Families

Most families contact me by phone before they ever sit in my office. I’m rarely their first call, and rarely their child’s first experience with therapy. They’ve usually tried something already that either helped a little, or didn’t help, or helped for a while and then stopped.

There’s a reason so many arrive this way. About 2.2 million children in the United States have OCD (obsessive-compulsive disorder). Yet more than two-thirds of the public can’t correctly identify it, and on average it takes over seven years for someone to receive an accurate diagnosis.

Most families I speak with have heard of Exposure and Response Prevention (ERP) and know it’s the recommended treatment for OCD. What’s usually unclear is what it involves, what happens in a session, how long it takes, and what will be asked of them.

How ERP Treatment for OCD Begins

When starting ERP, it’s important to understand how it differs from other treatments you may have tried before.

Traditional Cognitive Behavioral Therapy asks you to examine a thought and evaluate whether it holds up. When treating anxiety or depression, identifying inconsistent thought patterns and learning to replace those thoughts with alternative, more balanced ones can be highly effective. With OCD, this same process can inadvertently reinforce patterns of rumination and checking, continuing to make symptoms worse rather than better. The mental debate about whether or not the feared thing will happen becomes, subtly, another form of checking. If relief comes, it only lasts until the next intrusive thought shows up, and the process starts over again.

ERP is built around a different move. Instead of arguing with the belief, it sets up experiences that contradict it. Rather than listening to OCD telling you that you need to do your compulsions to feel better or to prevent something bad from happening, ERP gives you the chance to learn something new: that the compulsion isn’t necessary.

A typical course of ERP runs 12 to 20 sessions of about an hour each. The first two or three are education and assessment — mapping the obsessions, the compulsions, and the ways OCD has been impacting your ability to live fully and happily.

From there we spend a session or two building an exposure list: a list of the situations that would cause you distress if you didn’t engage in compulsions. This serves as the “map” for exposures going forward. The list comes from what you recall, from family input where appropriate, and from a tracking sheet you complete between sessions.

Once we have the list, we go back through and assign each item a number from 0 to 100 on a distress scale. Those numbers are most useful if they’re anchored, so we’ll make sure to be clear about what your 30 feels like, and your 60, and your 90. The scale is yours, not mine.

Once the list is complete and numbered, we’ll identify the first exposure to complete in session together.

The First Exposure: Starting Small

The first exposure usually lands around session four.

It sits around a 40 on your distress scale — challenging, manageable, nowhere near the top of your list. I’ve sat on a wet bench with a client, then walked around a park in wet pants. I’ve put stickers on myself and gone into a grocery store with a client. I’ve watched a video with a client of someone deliberately stepping on every crack in a sidewalk. There are two rules we follow with every exposure we choose:

You will never be forced to do anything
I will do every exposure with you

We don’t know for certain how your anxiety will respond in exposures, and often clients can experience an increase in anxiety early in the process. What’s happening in those moments is that OCD is making its case. It genuinely believes the compulsion is required for you to be okay, and it argues harder when the compulsion isn’t carried out.

Your task in an exposure is simple, but not easy: to stay present with the thoughts and feelings you’re experiencing without engaging in any of the compulsions that your mind has the urge to do in order to feel better.

Why ERP Works for OCD

For a long time, ERP was explained through a theory called habituation: that staying in the situation until anxiety came down was necessary to reduce fear.

The understanding has shifted toward a new theory: inhibitory learning. The International OCD Foundation puts it plainly — ERP “does not cause an obsessional fear to be ‘unlearned’ or ‘erased.’ Instead, ERP teaches new information about safety.” The old fear doesn’t get replaced; instead, you learn something new alongside it. Through repetition, that new learning blocks out the previous belief. Through exposures, you learn three things:

The outcome you’re afraid of is significantly less likely than you worried it was
The consequences of the feared outcome are less severe than you believe them to be
You have the strength to tolerate discomfort and difficult emotions

So the goal of exposures isn’t a distress rating falling to zero. The goal is finding out that the predicted disaster didn’t arrive, that if what you fear most happens, it isn’t as bad as you thought, and that the discomfort was survivable. People improve without their anxiety dropping during the session. People whose anxiety drops during the session sometimes don’t improve at all.

The Family’s Role in OCD Treatment

Family support can often be a crucial component of OCD treatment and typically takes two forms: supporting the client in completing exposures and in reducing accommodation. I like to define accommodation as the ways we contort our lives to prevent people we love from experiencing distress or discomfort.

Accommodation shows up in subtle and well-worn patterns: Answering the same question for the ninth time. Waiting in the car while a ritual is carried out. Buying the specific soap. Taking over the chore. Rearranging dinner, or the route to school, or the seating in the living room. Going the long way around so a trigger never comes up.

It’s close to universal — accommodation occurs in 60 to 97% of families of people with OCD, most of them daily. It also predicts poorer treatment outcomes in both adults and children.

Accommodation always comes from love, but for OCD it works similarly to how compulsions do. It brings the distress down right now, while teaching the OCD that the fear is legitimate and the distress from it is not tolerable.

So accommodation gets reduced. Not overnight, not unilaterally, and not as a surprise. It comes down to an agreed plan, in the same gradual way the exposures go up, and the person with OCD knows what’s changing and when.

What Treatment Asks of a Family

Most families I work with have spent years trying to make someone’s distress smaller. It’s the most natural thing in the world to do. ERP asks for something close to the opposite — to let the discomfort be there, on purpose, in small, deliberate increments, and to find out together what happens when nobody rushes to fix it.

ERP is hard, but it’s highly effective when completed with a trained professional.

Frequently Asked Questions

How long does ERP treatment for OCD take?

A typical course runs 12 to 20 sessions of about an hour each. The first two or three sessions focus on education and assessment, and the first exposure usually happens around session four.

Will my child be forced to do something they're not ready for?

No. Every exposure follows two rules: the client is never forced to do anything, and the clinician does every exposure with them. Exposures are chosen collaboratively and start at a manageable level on the client’s own distress scale.

Is it normal for anxiety to increase during ERP?

Yes. An early rise in anxiety is common and expected — it reflects the mind arguing harder for the compulsion when it doesn’t come. Improvement isn’t measured by anxiety dropping to zero during a session; it’s measured by learning that the feared outcome doesn’t happen, or is survivable if it does.

What is 'accommodation,' and why does it matter?

Accommodation is the ways families adjust their routines to prevent a loved one’s distress — answering repeated questions, waiting out a ritual, avoiding certain triggers. It’s extremely common, occurring in 60 to 97% of families of people with OCD, but it can reinforce OCD and predicts poorer treatment outcomes. Reducing it is a gradual, planned part of treatment, not something sprung on the person with OCD.

What does ERP ask of the family, not just the person with OCD?

Family members are often asked to support exposures and to gradually step back from accommodating behaviors — on an agreed plan, not unilaterally. This means tolerating a loved one’s discomfort on purpose, in small increments, rather than rushing to relieve it.

Navigating OCD treatment can be overwhelming — especially when you’re trying to find a provider who specializes in Exposure and Response Prevention. Our Resource Specialists can help you find ERP-trained clinicians, treatment programs, and support services in your area, and walk you through what to expect as you get started.

Contact a Resource Specialist

Image of Denise Vestuti, LCSW, rtor.org Clinical Director

About the Author: David Gofman is a Licensed Professional Counselor and the founder of Gofman Therapy and Consulting in Westport, CT, where he specializes in Exposure and Response Prevention for OCD and anxiety disorders. Much of his practice is with teens, young adults, and the families supporting them, in person and virtually across Connecticut and Virginia.

Photo by August de Richelieu: https://www.pexels.com/photo/father-talking-to-his-son-4260094/

The opinions and views expressed in any guest blog post do not necessarily reflect those of www.rtor.org or its sponsor, Laurel House, Inc. The author and www.rtor.org have no affiliations with any products or services mentioned in the article or linked to therein. Guest Authors may have affiliations to products mentioned or linked to in their author bios.