Yes, acupuncture, and more specifically auricular acupuncture, shows real promise for treating PTSD. For example, clinical trials like one at the Washington, DC VA Medical Center have shown big improvements in sleep for vets with PTSD. This treatment is thought to spark the vagus nerve, which is key for controlling mood and stress. As a result, this triggers the release of feel-good chemicals, leading to calm and relaxation. For those looking at a full approach to treating PTSD, adding acupuncture can be a key part of a comprehensive PTSD Program.
For more in-depth info, you can check out the study in the journal Medical Acupuncture. Also, the National Center for Complementary and Integrative Health gives a full look at acupuncture and how it can be used, including for PTSD.