What is ERP therapy?

Exposure and Response Prevention is the gold-standard, evidence-based treatment for Obsessive-Compulsive Disorder (OCD) and many related anxiety disorders. ERP uses a structured, collaborative approach that helps you face fears gradually, reduce anxiety, and stop relying on compulsions or safety behaviors.

We begin by identifying the thoughts, situations, sensations, and triggers that fuel your OCD or anxiety. From there, we build a personalized exposure hierarchy—a step-by-step list of challenges ranked from least distressing to most. Exposures may include real-life (in vivo), imaginal, and interoceptive exercises tailored to your specific fears.

You start with small, manageable exposures. Together, we practice approaching triggers while intentionally resisting compulsions and rituals. This teaches your brain—through direct experience—that anxiety naturally decreases without needing to neutralize it. Over time, this leads to habituation, greater confidence, and an increased ability to sit with uncertainty.

As anxiety decreases at each stage, we move up the hierarchy at a pace that matches your readiness. ERP doesn’t remove intrusive thoughts; instead, it helps you change your relationship with them, so they no longer control your decisions or daily life.

Many people who engage in ERP notice meaningful improvements as treatment progresses. Research over several decades shows that ERP can significantly reduce symptoms and help individuals with OCD and related anxiety conditions regain a greater sense of control in daily life. While everyone’s experience is different, ERP is widely recognized as a highly effective, evidence-based approach. 

Common improvements include:

• Fewer compulsions, rituals, and safety behaviors
• Greater emotional resilience and ability to tolerate uncertainty
• Clearer, more confident decision-making
• Reduced avoidance of people, situations, or tasks
• Better daily functioning and overall quality of life
   

ERP helps retrain how the brain responds to fear by using two key learning processes: inhibitory learning and habituation.

Inhibitory learning happens when you face a feared thought, sensation, or situation without relying on compulsions or avoidance. Each time you do this, your brain learns a new message—“This fear is tolerable, and I can handle it.” Over time, these new learning pathways become stronger and begin to override old fear associations.

Habituation is the natural reduction of anxiety that occurs when you stay with discomfort long enough for distress to rise, level off, and then decrease on its own. This teaches your nervous system that fear is temporary, survivable, and does not require escape or rituals. Together, inhibitory learning and habituation help reduce compulsions, lower overall distress, and support long-term improvement.

ERP treatment often begins with two sessions per week, which helps build momentum, deepen new learning, and reduce compulsive behaviors more efficiently early in the process. As symptoms improve and confidence increases, most clients gradually step down from:

2 sessions per week → 1 session per week → biweekly → monthly or as-needed

Treatment intensity varies depending on symptom severity, duration of the problem, motivation, consistency with exposure practice, co-occurring conditions, and overall stress levels. ERP is most effective when practiced consistently and individualized to your needs, though—like all treatments—it cannot guarantee specific outcomes.

Throughout treatment, we often use the SUDS, or Subjective Units of Distress Scale, to measure anxiety or distress in real time. SUDS is a simple 0 to 10 rating system that helps you describe how intense your distress feels in a given moment, with 0 representing no anxiety and 10 representing the highest level of distress you can imagine. Tracking SUDS during exposures helps you observe an important pattern: anxiety rises, peaks, and eventually falls without the need for rituals or avoidance. Over time, clients begin to see that discomfort is temporary and manageable. The goal is not to drive the number to zero, but to build confidence in your ability to tolerate whatever number shows up.

• 1–2 sessions: Assessment, goal-setting, and ERP education
• Early phase: 2 sessions per week to build strong momentum
• Middle phase: 12–20 structured ERP sessions targeting exposures, rituals, avoidance, and uncertainty
• Improvement phase: Many clients experience meaningful progress between sessions 12–20
• Maintenance: Optional booster sessions to strengthen gains, prevent relapse and navigate application during life transitions.