How Can Skin Nevus On The Leg And Face Be Treated?

hello sir, my name is Inderdeep singh age is 26 yr height is 5,8f weight is 84 kg sir i am suffering from a skin problem i dont know the exact name of skin disease i had white spots on my right leg and some upper portion and little bit on face its going to be 16 ys i consult many dr. and i have taken many medicines but didnot get full relief plz read my query and gave me satisfy answer