A new treatment has shown benefits for reducing the symptoms associated with chronic Post-Traumatic Stress Disorder and associated depression, a team of psychiatrists has found. For Trigeminal Nerve Stimulation, individuals wear an unobtrusive patch on their forehead while they sleep. Following treatment, the severity of participants' PTSD symptoms dropped by an average of more than 30 percent, and the severity of their depression dropped by an average of more than 50 percent.