<prompt> A woman comes to the psychiatrist with history of spending a lot of time in washing her hands. She is distressed about it but says that she cannot stop the practice and spends a lot of time on it. This has staed affecting her social life as well. What is the best mode of treatment for her?Cognitive behavioral therapyExposure and response preventionSystematic desensitizationPharmacological agents  <response>: Ans: B. Exposure and response preventionRef Kaplan and Sadock I I e p406Here the patient is suffering from OCD.Treatment of choice for OCD:Behaviour therapy:Conducted in both outpatient inpatient settings.Most effective in compulsions.Preferred principal approach:Exposure response prevention.Other methods:Desensitization, thought stopping, flooding, implosion therapy, and aversive conditionin.Require true commitment from patient for improvement. 