According to the US Food and Drug Administration (US FDA), ear candling is sometimes promoted with claims that the practice can "purify the blood" or "cure" cancer. Health Canada has determined the candles have no effect on the ear, and no health benefit; instead they create risk of injury, especially when used on children. In October 2007, US FDA issued an alert identifying ear candles (also known as ear cones or auricular candles) as "dangerous to health when used in the dosage or manner, or with the frequency or duration, prescribed, recommended, or suggested in the labeling thereof" ... "since the use of a lit candle in the proximity of a person's face would carry a high risk of causing potentially severe skin/hair burns and middle ear damage."