How to Do ERP for Pure OCD

If you have obsessions without apparent compulsions and wonder how ERP applies to you, this one is for you.

What is Pure OCD?

Pure OCD, often called “Pure O,” is characterized by intrusive, unwanted thoughts — obsessions — without visible compulsions. But in practice, most people with Pure OCD do perform compulsions. They’re just mental ones: thought suppression, checking, analyzing, and more.

The themes it shows up in

Pure OCD attaches to whatever matters most to you. Commonly:

• Harmful or violent obsessions — thoughts about causing harm to yourself or someone else.
• Sexual obsessions — unwanted intrusive sexual thoughts, which are distinctly different from urges or fantasies.
• Faith or religious obsessions — intrusive thoughts about your faith, your salvation, or existential questions.
• Relationship obsessions — doubts and fears about the status or integrity of your relationship.

The theme differs. What’s running underneath doesn’t.

Understanding ERP

ERP is a structured approach designed to help you face your fears and reduce compulsive behaviors. It might seem hard to apply when the compulsions are mental, but the principles are the same.

Common mental compulsions

• Thought suppression — trying to forcefully push intrusive thoughts away.
• Thought checking — repeatedly revisiting thoughts to analyze their significance.
• Praying — prayer can be a healthy spiritual practice, but using it compulsively to neutralize anxiety reinforces the loop.
• Counting — mentally counting to avoid or dismiss obsessions.

Steps to conduct ERP for Pure OCD

• Identify obsessions and compulsions. Identifying the mental compulsions is what makes the difference here.
• Experience the thoughts. Allow intrusive thoughts to be present without attempting to neutralize or avoid them.
• Prevent compulsive responses. Recognize when you’re engaging in a compulsion — analyzing, praying compulsively, any other mental act — and resist the urge.
• Habituate to the anxiety. Over time, exposure to these thoughts without engaging in compulsions reduces the anxiety they provoke.

An example: existential obsessions

Consider someone obsessed with existential thoughts like “what if God doesn’t exist?” They might avoid situations that trigger the thought, or engage in compulsive prayer.

• Exposure: allow the thought to be present without engaging in rituals or compulsive prayer.
• Response prevention: distinguish between faith-based prayer and compulsive prayer, and refrain from praying to neutralize the anxiety around the thought.

Naming the right problem

Matt’s own turning point came from getting the name right. For a long time he believed what he was dealing with was demonic possession, and looked for religious solutions to match. The shift came when someone suggested it might be OCD — recognising what it actually was is what made the right approach possible at all.

That’s not a small detail. It’s the first of the two mistakes that derail this work.

Two mistakes that derail ERP

• Misidentifying the problem. Treating the intrusive thought as the problem, rather than recognising the loop it belongs to. If you believe you have no compulsions, you’ll conclude ERP can’t help you — when in fact your compulsions are just mental.
• Expecting immediate results. ERP isn’t about eliminating thoughts and feelings on contact. It works by reducing how much threat you assign to the thought, over time. Going in expecting the thoughts to stop sets you up to call it a failure when it’s working.

Wrapping up

Identify your mental compulsions, face the fear, and resist the compulsive behavior. That’s the process that leads to long-term relief and breaks the loop.

Related reading: compulsions you don’t recognize as compulsions · the fear loop · the Triple-A Response®