The reason that CBT is the most successful operation of prevention is because its places the responsibility on the person to change their mental wellbeing. CBT challenges the patient to reorganize their recurring thoughts into a less obsessive pattern of thinking.
However this demanding cognitive elaboration might be difficult for a child to abstractly comprehend. This presents implications of treatment that are alien to the systematic process of CBT. Since children aren't developmentally mature to comprehend abstract concepts it can be difficult for a clinician to provide the proper insight toward the child's cognitive reorganization. Children are also more present-oriented than adults (Piacentini, Bergman, Jacobs, McCracken, & Kretchman, 2000). Failure to properly treat this can result in a reemergence of the same problems later in development. Geffken, Sajid, and MacNaughton
References: Ferrier, S., Brewin, C.R. (2005) Feared identity and obsessive--Compulsive disorder Behaviour Research and Therapy, 43, 1363-1374 Geffken, G., Sajid, M., & MacNaughton, K. (2005). The Course of Childhood OCD, Its Antecedents, Onset, Comorbidities, Remission, and Reemergence: A 12-Year Case Report. Clinical Case Studies, 4, 380-394 Mansueto, C.S., Keuler, D.J. (2005) Tic or Compulsion?: It 's Tourettic OCD. Behavior Modification, 29, 784-799. Piacentini, J. (1999). Cognitive behavioral therapy of childhood OCD. Child Psychiatric Clinics of North America, 8, 599-618. Piacentini, J., Bergman, R. L., Jacobs, C., McCracken, J.T., Kretchman, J. (2002) Open trial of cognitive behavior therapy for childhood obsessive-compulsive disorder. Journal of Anxiety Disorders, 6, 207-219 Westbrook, D. Kirk, J. (2005) The clinical effectiveness of cognitive behaviour therapy: Outcome for a large sample of adults treated in routine practice. Behaviour Research and Therapy, 43, 1243-1261.