Pau d’arco is native to South America. The bark is used both externally and internally to assist for arthritis, pain, inflammation of the prostate gland, fever, boils, ulcers, fight candida and chronic fatigue, boost metabolism and treat various cancers. One of the easiest ways to use Pau d’Arco is by consuming a tea from the bark or applying the tea water to the skin. It is antioxidant, antiviral and antimicrobial.