can thrush spread to ears?
If thrush goes untreated and does not go away by itself, it can spread to other parts of the body. 1  Thrush can spread to the throat (esophagus), the vagina, or the skin. 2  It rarely spreads to other organs of the body. 3  Infants can get a diaper rash because the yeast that causes thrush is in the infant's stool.