I. What is obsessive-compulsive disorder? Recurrent thoughts, impulses, and imagery that cannot be controlled are called obsessive thoughts. Compulsive thinking causes anxiety in patients, which leads to repeated, meaningless or ritualistic behaviors called compulsive behaviors. Compulsive behaviors usually relieve anxiety at the time, and compulsive behaviors can affect the patient’s life and work or cause pain or even serious disability in the long term. This compulsive thinking and or compulsive behavior is collectively known as OCD, and compulsive thinking and compulsive behavior can occur separately or together. Treatment of OCD: Treatment of OCD can use cognitive behavioral therapy (exposure response blocking therapy ERP) and medication or a combination of both. 1, cognitive-behavioral therapy (exposure response blocking therapy ERP) Exposure response blocking therapy ERP is one of the cognitive-behavioral therapy, with a preference for behavioral therapy, which is currently recognized as an effective treatment for OCD. The essence is to expose the patient to situations that will cause distress and thus anxiety, while preventing the patient from doing the compulsive behavior and experiencing a natural decline in their anxiety habituation. There are two forms of exposure: real exposure, such as having a patient who is worried about a bacterial infection sit on the floor; and imaginary exposure, such as asking the patient to imagine himself sitting on the floor. Next comes response blocking, which is the key to the therapy’s treatment of OCD. This is because the exposed patient may experience compulsive thinking, such as fear of infection, which leads to anxiety, while response blocking is stopping the patient from compulsive behaviors (including ritualistic and avoidance behaviors) when he or she is anxious about wanting to appear, such as wanting to get off the floor or wanting to go clean. By allowing the patient to remain in the exposed situation until the seemingly inescapable pain and anxiety naturally decays, the anxiety does not rise endlessly, but will naturally decline over time, and that is habituation! Patients who experience success with habituation are able to successfully overcome this level of anxiety in the situation. Exposure exercises generally begin with moderately distressing situation stimuli or imagery and gradually rise to the most distressing situations. This level is best chosen as an intermediate level of anxiety that will allow the patient to successfully complete the exposure exercise while still being challenging. Step by step, the patient overcomes the situation and object he was afraid of until the situation with the highest level of anxiety. Habituation of the experience is the key to curing OCD, and continued exposure thereafter can prevent relapse. 2. Medication: Medication for OCD is based on SSRIs, including citalopram, escitalopram, fluoxetine, fluvoxamine, paroxetine, sertraline, etc. Studies have proven that clomipramine has a very positive efficacy in the treatment of OCD. 3, the choice of treatment: cognitive behavioral therapy (exposure response blocking therapy ERP) and drug therapy are effective for OCD. However, they have their own advantages and disadvantages. About 75% of patients who completed cognitive-behavioral therapy (ERP) had better outcomes and improved their symptoms by an average of about 65%. First, cognitive-behavioral therapy (ERP) has no side effects; however, it also has disadvantages. First, as with medication, there is no guarantee of improvement, and even those who benefit are not completely free of symptoms, and second, despite the perception that psychotherapy has no side effects, exposure therapy still has the unpleasant side effect of making you feel distressed when faced with situations that cause obsessive-compulsive thoughts. Third, cognitive-behavioral therapy requires you to do a lot of work. Third, cognitive behavioral therapy requires a lot of effort on your part, unlike medication where the chemicals do most of the work; in exposure therapy, the patient does most of the work themselves. The rewards of this treatment depend greatly on the amount of time and effort you put into the process. Medication works for 70% of people. The advantages of medication are that it does not require much effort on the part of the patient. The disadvantages of medication are that there are still some people who do not get better and that there are side effects to the medication that are tolerated by many people but can sometimes be unpleasant or intolerable. There may be some side effects from taking medications, but it is difficult to predict the extent to which patients can tolerate these side effects. Another disadvantage of taking medication is that you may feel good while taking it, but your OCD symptoms may return after you stop taking it. 4, the United States OCD treatment guidelines recommend: prompt first-line treatment for cognitive-behavioral therapy (exposure response blocking therapy ERP) and SSRI-type drug therapy or a combination of both. A standard course of cognitive-behavioral therapy (ERP) for OCD includes 13-20 weeks of weekly treatment or 3 weeks of intensive treatment, including 5 weekly (Monday through Friday) sessions. standard treatment with an SSRI includes 8-12 weeks of treatment at a full dose, including 4-6 weeks at the maximum tolerated dose. If the above treatment is effective, subsequent maintenance medication is administered for 1-2 years, and then slow taper until discontinuation can be considered. Psychotherapy follows the above acute phase treatment plus regular consolidation psychotherapy for 3-6 months.