hello sir i' m having black spots on my neck , face and hand and its increasing .... an allopath doctor diagnosed it as a lichen planus pigmentosus.. i have only balck spots and there is no itching in it only discolouration of skin is there , these spots looks so weird . so kindly tell me sir is this desease is curable and does the spots goes away . what treatment should i take to get rid of this desease . thanking you