As a complementary and alternative medicine, acupuncture is felt to be a safe and cost-effective therapeutic approach to the treatment of many diseases and symptoms. While the effect of acupuncture for the treatment of epilepsy has been equivocal, studies in the setting of mental health disorders such as post-traumatic stress disorder and anxiety have been promising. Auricular acupuncture has been specifically studied in cocaine dependence, smoking cessation, dental anxiety, and PTSD.