Joe Chang does acupuncture
Acupuncture is one of the alternative treatments for PTSD offered at the Combat Stress Reset Center at Fort Hood, along with reiki, sound therapy, meditation, massage and others. The general idea is to help soldiers relax - hyper arousal is a huge problem when soldiers return from combat.
When it comes to using acupuncture and Chinese medicine to treat PTSD, they don't come much more knowledgable than Joe Chang. He's written books on the subject, and the other doctors at the center described him as the best there is.