Behavior therapy from a qualified therapist is unquestionably the treatment of choice for most variations of this condition, exceeding the results of medication and of other psychotherapies. The essential element of any behavior therapy program is called exposure with response prevention, which must be supervised and implemented by an expert in the area. In this approach, a person is voluntarily exposed to whatever triggers the obsessive thoughts and fear, then is prevented from acting upon these anxieties by engaging in ritualistic behavior.