Hi Betty. The answer is yes, symptoms can appear on your leg. Seborrheic Dermatitis is a condition caused by malassezia, a type of fungus that exist in people's oil discretions. Therefore though it normally appears on the scalp, it can also appear inside the ear, on the chest, and, of course, on the legs. The symptoms of Seborrheic Dermatitis are those like Matthew just mentioned. Since doctors don't fully understand the origin of this condition, there are no exact cure as well. However, to prevent this condition it is advised to care for your skin and not apply irritating chemicals on your skin.