Condition occurring in folds of skin, for example under the breasts, in the buttock cleft and the groin. Small suppurating blisters are formed by regular friction in the warm, moist space formed by the fold of skin. They have a red edge and burst and spread quickly, so that the whole area of the fold is quickly affected, and some blisters are also seen at the edge. The disorder is caused by a unicellular fungus which flourishes in warm, moist surroundings. There is also a type of