Direct Therapeutic Exposure (DTE) is a behavior therapy technique pioneered by Patrick A. Boudewyns, where stressors are vividly and safely confronted to help combat veterans, and patients suffering from posttraumatic stress disorder (PTSD), panic disorder, or phobias. Exposure therapy has supporting evidence with both simple and complex traumas. . A similar therapy is Eye Movement Desensitization and Reprocessing (EMDR). First known publication in book form is Flooding and Implosive Therapy: Direct Therapeutic Exposure in Clinical Practice by Patrick A. Boudewyns, Robert H. Shipley. 1983. ISBN 0-306-41155-5.
It is not uncommon to combine DTE treatment with other therapies.
Direct exposure has been used with a variety of populations including agoraphobia  and chronic PTSD  It involves as the name applies placing the client either real or imaginally in the feared situation.
Other techniques for treating PTSD:
- Prolonged exposure therapy
- family therapy
- psychodynamic psychotherapy
- creative arts therapy
- outward bound programs
- cognitive behavior therapy.
- Baschnagel, J.S., Coffey, S.F., and Rash, C.J. (2006). The Treatment of Co-Occurring PTSD and Substance Use Disorders Using Trauma-Focused Exposure Therapy. IJBCT 2(4), 498-508. BAO
- Katherine Porter, Carole Porcari, Ellen I. Koc, Courtney Fons and C. Richard Spates (2006): In vivo Exposure Treatment For Agoraphobia. The Behavior Analyst Today, 7(3) 434 -445. 
- Afsoon Eftekhari, Lisa R. Stines and Lori A. Zoellner (2005): Do You Need To Talk About It? Prolonged Exposure for the Treatment of Chronic PTSD. The Behavior Analyst Today, 7(1), 70- 84 
Boudewyns, P.A. & Hyer, L. (1990). "Physiological Response to Combat Memories and Preliminary Treatment Outcome in Vietnam Veteran PTSD patients treated with Direct Therapeutic Exposure." Behavior Therapy, 21, 63-87.