OCD Treatment

Specialist assessment and treatment for intrusive thoughts, compulsions, avoidance, reassurance cycles and severe or complex OCD.

Obsessive compulsive disorder is widely misunderstood and, as a result, frequently untreated for years. It is not a preference for tidiness or a personality quirk. It is a condition in which unwanted intrusive thoughts cause real distress, and in which the things people do to relieve that distress end up feeding it.

OCD responds well to a specific treatment. Cognitive behavioural therapy with exposure and response prevention has a strong evidence base, and most people who complete a proper course improve substantially. Cardinal Clinic provides private, consultant psychiatrist-led assessment and treatment for OCD in Windsor, Berkshire, for people across Berkshire, Surrey and West London.

You can refer yourself without going through your GP. See self-referral for how to start, and fees and finance for what private treatment involves.

At a glance

  • Who it is for: adults experiencing intrusive thoughts, compulsions, rituals, checking, or reassurance seeking that cause distress or take up significant time.
  • What is treated: OCD in its various presentations, including contamination fears, checking, symmetry and ordering, intrusive thoughts about harm, and intrusive thoughts of a sexual or religious nature. Also treated alongside related difficulties such as body dysmorphic disorder, anxiety and depression.
  • Main treatments: CBT with exposure and response prevention (ERP), psychiatric assessment, and medication review where appropriate.
  • Levels of care: usually outpatient. Day-patient and inpatient care are available where OCD is severe, where rituals dominate the day, or where depression has developed alongside it.
  • Approach: consultant psychiatrist-led, with treatment that targets the mechanism rather than the content of the thoughts.
  • Location and catchment: Windsor, Berkshire, serving Surrey and West London.

What OCD actually is

OCD has two parts that lock together.

Obsessions are unwanted, intrusive thoughts, images or urges that arrive uninvited and cause distress. They are experienced as intrusive precisely because they clash with what the person values. That is the whole point, and it is why the thoughts are frightening.

Compulsions are what someone does to neutralise that distress. Washing, checking, counting, ordering, repeating, praying, mentally reviewing, confessing, or asking for reassurance. Compulsions work in the short term, which is exactly the problem. Each time the ritual relieves the anxiety, it teaches the brain that the thought was genuinely dangerous and that the ritual is what kept you safe. The relief is real and the loop tightens.

This is why OCD is so hard to think your way out of. The logic that makes sense from inside the condition is the logic that maintains it.

A few things are worth saying plainly, because they keep people from seeking help:

  • Intrusive thoughts about harm, sex or blasphemy are a recognised part of OCD. People who experience them are often terrified they mean something about their character. They do not. Their distressing quality is the clinical feature. Clinicians who treat OCD hear these presentations regularly and are not shocked by them.
  • Not all compulsions are visible. A great deal of OCD happens mentally, as reviewing, counting or arguing with the thought. Someone can have severe OCD with nothing an observer would notice.
  • Reassurance is a compulsion. Asking a partner "you're sure I didn't do anything wrong?" and being told no works the same way as washing your hands. That is why involving families in treatment often matters.

How OCD is treated

Exposure and response prevention is the core treatment, and it is more specific than general CBT. You gradually and deliberately face the situations that trigger the obsession while not performing the compulsion. The point is not to prove the feared thing will not happen. It is to learn that the anxiety falls on its own without the ritual, and that you can tolerate the uncertainty the OCD insists you resolve.

This is demanding work and it is done collaboratively, in graded steps you agree to, at a pace you set. A good therapist does not spring things on you. Most people find it more manageable than they feared, partly because it finally targets the mechanism rather than arguing about the content of the thoughts.

Cognitive work sits alongside it, addressing the beliefs that keep the loop running: that thinking something makes it more likely, that you are responsible for preventing every possible harm, or that uncertainty must be resolved before you can act.

Psychiatric assessment matters because OCD is frequently accompanied by depression, and because it can be confused with other conditions. Intrusive thoughts occur in anxiety disorders, in trauma, and sometimes in the aftermath of childbirth, where they are common, frightening and highly treatable. Distinguishing these properly changes what is offered.

Medication has a genuine evidence base in OCD, generally at higher doses and over longer periods than in depression, and it is often used alongside ERP rather than instead of it. That is a conversation to have with a psychiatrist who can explain the reasoning, the timescales, and what to expect.

When to get help for OCD

The average delay between OCD starting and someone getting the right treatment is measured in years, usually because of shame about the content of the thoughts or a belief that this is simply how they are. Neither is a good reason to wait.

Is this OCD that warrants treatment?

  • Intrusive thoughts are distressing you, and you are doing something to neutralise them.
  • Rituals, checking or mental reviewing take up meaningful time in your day.
  • You are avoiding places, people or situations that set the thoughts off.
  • You seek reassurance repeatedly, and the relief does not last.
  • The thoughts frighten you about what kind of person you are.
  • Family members have been drawn into the rituals, or have started accommodating them.
  • It is affecting work, study, sleep or relationships.
  • You have had general counselling that did not touch it.

That last point is worth its own note. OCD often does not respond to open-ended talking therapy, and can be made worse by it, because discussing the content of obsessions in detail can function as another form of reassurance. If you have had therapy that did not help, that is not evidence your OCD is untreatable. It may be evidence you have not yet had ERP.

When OCD comes with low mood or thoughts of self-harm

Depression develops alongside OCD often, particularly where the condition has been going on for years or where rituals have taken over the day. Where both are present, both need treating, and the order matters clinically. Say so at assessment if you are experiencing persistent low mood, hopelessness, or thoughts that life is not worth continuing.

If you feel unsafe now, do not wait for an appointment. Contact your GP urgently, call NHS 111 and choose the mental health option, or go to your nearest emergency department. If life is at immediate risk, call 999. Samaritans can be reached free on 116 123, at any hour.

Intrusive thoughts about harming yourself or others are a recognised feature of OCD and are different from an intention to act. If you are unsure which you are experiencing, that uncertainty is itself a good reason to be assessed rather than to wait.

How Cardinal Clinic treats OCD

Assessment is with a consultant psychiatrist and covers the form the OCD takes, how long it has been present, the compulsions involved including the mental ones, what treatment you have had before, mood, sleep, and how much the condition has drawn in the people around you. You do not need to describe the content of your intrusive thoughts in more detail than you are comfortable with for a plan to be made.

Treatment is usually outpatient, with ERP delivered as a structured course while you continue at work and at home, which matters because the work of ERP happens between sessions in your own environment. Where OCD is severe, where rituals dominate the day, or where depression has developed alongside it, day-patient and inpatient care are available with the same consultant-led team.

Because OCD sits close to other conditions, treatment often draws on the same clinicians who treat anxiety and depression. You can see the clinical team before deciding.

Frequently asked questions

Does everyone with OCD wash their hands?

No. Contamination fear is one presentation among several, and it is over-represented in how OCD is portrayed. Checking, symmetry, intrusive thoughts about harm, and purely mental rituals are all common, and someone can have severe OCD without any visible compulsion at all.

Are my intrusive thoughts a sign I might act on them?

Distressing intrusive thoughts of this kind are a recognised feature of OCD, and the distress they cause is precisely because they conflict with your values. Clinicians who treat OCD assess this properly rather than reacting to it, and it is one of the most common reasons people delay seeking help. If you are worried, that is a reason to be assessed, not a reason to stay silent.

How long does treatment take?

A course of ERP is often somewhere between twelve and twenty sessions, though it varies with severity and how long the OCD has been established. Progress usually shows in reduced compulsions before the thoughts themselves quieten.

Will I be made to touch something disgusting on day one?

No. Exposure is graded, agreed in advance, and paced by you. The aim is to work at a level that is challenging and manageable, not overwhelming. Therapists who work this way will not surprise you.

Should my family be involved?

Often it helps. Families frequently get drawn into providing reassurance or taking part in rituals, usually with the best intentions, and unwinding that carefully is part of treatment. Whether and how they are involved is your decision.

Do I need a GP referral?

No. You can refer yourself directly. See self-referral for how it works. With your consent we would usually keep your GP informed, which matters if medication forms part of the plan.


OCD is treatable, and the specific treatment for it works. If you recognise the loop described here, contact us to ask a question, or refer yourself when you are ready.

Not sure if this is right for you?

Talk it through with our admissions team. The conversation is confidential and there is no obligation to go ahead.

Frequently Asked Questions

Speak to our team

If OCD is taking over time, relationships, work, study, food, sleep or safety, specialist clinical assessment can clarify the right level of care.

Call us

Monday to Sunday, 08:00 to 22:00