ERP Therapy UK: Treatment For OCD And Anxiety

Medically reviewed by Melissa Guarnaccia, LCSW
Updated February 7th, 2025 by BetterHelp Editorial Team
Content warning: Please be advised, the below article might mention trauma-related topics that could be triggering to the reader. Please see our Get Help Now page for more immediate resources.

Obsessive-compulsive disorder (OCD) is a mental illness that causes recurring, distressing thoughts (obsessions) and related behaviors (compulsions). Both can interfere significantly with daily functioning and overall well-being. According to the most recent NICE (National Institute for Clinical Excellence) estimates, OCD affects about 1.2% of the UK population, meaning roughly 12 out of every 1,000 people experience the condition. OCD can develop at any age, though it often begins in childhood or early adulthood. 

Many people with OCD are able to effectively manage symptoms and improve their quality of life with professional treatment. ERP (exposure and response prevention) therapy is one of the most common behavioral therapies for OCD. Here, we’ll explore ERP therapy, its effectiveness, and its availability in the UK.  

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What is ERP therapy for obsessive-compulsive disorder?  

ERP therapy is a type of cognitive behavioral therapy (CBT) specifically designed to treat anxiety and obsessive-compulsive disorder (OCD). It works by gradually exposing individuals to the causes of their fears and anxiety in a safe and controlled environment while preventing them from engaging in compulsive behaviours and encouraging healthy coping mechanisms instead.

What mental health conditions can ERP treat?

While ERP is most commonly associated with OCD, it can also be used to treat several other conditions, such as social anxiety, generalized anxiety disorder (GAD), panic disorder, specific phobias, and post-traumatic stress disorder (PTSD). Additionally, ERP is sometimes used to treat body-focused repetitive behaviors such as skin-picking (excoriation) and hair-pulling (trichotillomania). 

How does ERP therapy work?

Mental health professionals can tailor ERP therapy to an individual’s unique needs. Still, it tends to follow a general, structured framework because the goals are typically the same: change harmful behaviors through desensitization. By repeatedly exposing oneself to stressors without performing compulsions, the brain learns that the feared outcomes are unlikely or less distressing than expected. This process is called habituation. Over time, the individual's anxiety often decreases, and they may gain confidence in managing their obsessions and compulsions. The foundational components of ERP therapy used to achieve such outcomes are as follows.

Exposure

The “exposure” part of ERP therapy involves gradually confronting specific situations, thoughts, or objects that typically lead to obsessive fears and anxiety in the client. The exposures are controlled and systematic, beginning with less challenging causes and working up to more challenging ones.

Response prevention 

Response prevention involves actively resisting the typical compulsive behaviours or rituals that the individual normally performs to reduce their anxiety. Like the exposure portion of therapy, response prevention is done gradually in a controlled environment. 

What to expect in ERP therapy

ERP therapy sessions typically follow a loose structure, beginning with an initial educational and assessment phase followed by exposure exercises and other activities. The therapist usually monitors the client’s progress throughout and adjusts as necessary. Here is a general idea of what to expect in ERP therapy:

  • Psychoeducation: Your therapist will help you understand obsessions and compulsions and how they are connected to anxiety. 
  • Assessment: You and your therapist will work together to identify specific obsessions and compulsions, creating a personalized "exposure hierarchy."
  • Practice: During this phase, you’ll become exposed gradually to your fears in a safe environment with your therapist there to offer support and encouragement.
  • Review: You and your therapist will review your experience and what you learned.
  • Homework: Your therapist might give you exposure exercises to complete between sessions to reinforce progress. 
  • Adjustment: As you progress up the fear hierarchy, your therapist will review your progress and adjust the treatment plan as needed. 
  • Relapse prevention: You might work with your therapist to create a plan to prevent relapses in compulsive behaviors.
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Addressing misconceptions about ERP

ERP is an effective OCD treatment for many; however, it can be challenging. Individuals and their therapists must typically commit to the process for it to work. 

In some cases, myths and misconceptions about ERP therapy create barriers for individuals who need treatment. Some common myths surrounding ERP therapy include:

  • Myth #1: You must “fight” your internal experiences and responses: Treatment isn't about resisting your thoughts and emotions; it's about learning to understand and accept them in order to move past them. 
  • Myth #2: The goal of therapy is to “cure” OCD: The goal of treatment is to learn to manage challenging situations and develop the coping skills necessary to respond more appropriately when they arise. 
  • Myth #3: Exposure in ERP therapy must be stressful for it to work: The goal of exposure to a stressor is to expand the mind’s willingness to experience it, which doesn’t always lead to distress.
  • Myth #4: Accepting obsessive or intrusive thoughts means learning to agree with them: Obsessive thoughts aren't typically labeled as "good" or "bad" in ERP therapy. They simply exist and are meant to be viewed with the understanding that we can't control the thoughts that arise—only how we engage with or respond to them.  

The future of ERP therapy in mental health treatment

Future directions for ERP therapy are expected to include using digital tools like apps or virtual reality for exposure therapy exercises. Technology may also be used to collect real-time data on patient responses during exposure exercises to inform treatment adjustments and provide further insights into the mechanisms of ERP. In addition, the future of treating OCD might focus on tailoring ERP protocols to individual needs and preferences, considering factors like the severity of symptoms, cognitive style, and cultural background.

Research may also explore the effectiveness of combining ERP with other cognitive therapy types, such as acceptance and commitment therapy (ACT), pharmaceutical interventions, or neurostimulation techniques like deep TMS for complex cases.

How long does it take for ERP therapy to work for OCD?

Every person’s experience with ERP is unique, and how long it takes depends on the patient’s circumstances and treatment adherence. For example, individuals with more severe OCD might need more time to achieve noticeable results. On the other hand, some people may see positive changes within a few weeks of starting therapy. Overall, many people notice significant improvements in their OCD symptoms after anywhere from a few weeks to a few months of consistent ERP therapy.

Effectiveness of ERP therapy for obsessive-compulsive disorder 

Studies on ERP therapy’s effectiveness consistently suggest that it can lead to substantial decreases in OCD symptoms for many, with some achieving almost complete remission.

Overall, data suggests that roughly 50–60% of patients who complete ERP therapy experience “clinically significant improvement in OCD symptoms, with long-term treatment gains.” Note, however, that the effectiveness of ERP as an OCD therapy does depend on treatment adherence and relapse-prevention techniques.

Finding ERP therapy in the UK

Individuals in the UK can contact their general practitioner for a referral to an NHS talking therapy service, where you can specifically request a therapist specializing in ERP therapy or other forms of OCD treatment. You can self-refer online as well. Groups like OCD-UK and Anxiety UK can provide resources and referrals to help you find a trained OCD specialist. 

Additionally, many independent practitioners who specialize in CBT offer ERP for a fee. If looking for an independent therapist, ensure they are qualified and experienced in delivering ERP therapy specifically for your needs. You might also search for accredited therapists via reputable organizations like the British Association for Behavioural and Cognitive Psychotherapies (BABCP). 

Online treatment for obsessive-compulsive disorder

In many cases, online therapy can be an effective and convenient treatment for mental illnesses like OCD and anxiety disorders. Virtual care allows those in rural areas to receive treatment more easily. Plus, it typically offers flexible scheduling options and eliminates the need for travel to and from appointments, and online therapy is an affordable option. 

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Efficacy of online ERP therapy UK for OCD

Research suggests that internet-delivered ERP therapy can be as effective as in-person ERP treatment for some people. For example, 113 mental health professionals who provide ERP for adults, children, and/or adolescents with OCD were surveyed on their experiences with online ERP. The professionals reported overall positive outcomes and treatment adherence. That said, online ERP might not be appropriate for all clients with OCD. For example, children under 13 or individuals with more severe OCD may require face-to-face intervention.

Takeaway

OCD can create significant challenges in everyday functioning. Treatments like cognitive behavioural therapy, other behavioural therapies, and exposure and response prevention therapy can provide encouragement for people having difficulties living with anxiety and OCD. If you're living with OCD symptoms, it’s generally recommended that you seek professional guidance. Help is available through support organizations, the NHS, independent providers, and online therapy platforms.
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