PTSD is a mental disorder that can occur after a traumatic event such as a war, terrorist attack, or disaster. Some people don't even know they have PTSD. Symptoms of PTSD: insomnia, anxiety, depression, irritability, nightmares (Davide Bonazzi). There is no single answer which is more effective when dealing with PTSD, as each person is unique and each case requires an individual approach. Here are a few therapeutic approaches that have proven effective in treating PTSD. Reading time 4 minutes.