Pau D'Arco, also known as taheebo, has been used for thousands of years by Brazilian Amazonian tribes. Traditional uses include malaria, anaemia, colitis, respiratory problems, colds, cough, flu, fungal infections, fever, arthritis and rheumatism, snakebite, poor circulation, boils, syphilis, and cancer. Pau D’Arco increases red blood cell count, which makes it useful for anaemia, and also boosts the human immune response. It is widely used for candida and other fungal infections, as well as a wide range of parasitic infections. For this reason it is a good herb to use for digestive upsets when the cause cannot be determined. Clinical trials show its effectiveness for leukaemia, carcinomas and most tumours and cancers. Another traditional use is as a wash for psoriasis and dermatitis.