Hi doctor, my cousin has white patch on front side of her leg since 20 years.where itching doesnt occur,she consulted dermatologist did medication, that time slowly the new patch which comes disappear,and that old one also becomes small in size but dint remove totally. Sometimes the new one starts appearing on other leg also and disappears by own,but old one didnt disappear.she is very much woorried.pllzzz suggest good and effective medicine, which can cure it permanently.t.y.