Some of the common approaches used for the treatment of PTSD include Cognitive Behavioural Therapy (CBT) which focuses on the associations between thoughts, feelings, and behaviours and focuses on changing unhealthy patterns that lead to difficulty in functioning to constructive and healthy ones; Cognitive Processing Therapy (CPT) helps patients particularly challenge unhealthy beliefs attached to the trauma; and Prolonged Exposure exposes the patient gradually to trauma related memories, situations, and feelings, so that the patient eventually learns that they are not dangerous and need not be avoided.