Hi Dr. I am 39 years old female and mother of 2 children (14 yrs and 8 yrs). My problem is that backside of my neck and upper back is very dark since childhood. Even my arms are having dark spots like blemishes (half portion vertically). I have shown to dermatologist also, he said this is hereditary. Spots will not be vanished but become light comparatively. But there is no improvement. Now my 8 years old daughter is also having dark neck and armpits. Please suggest the remedy and best treatment. Thanks. (I am not suffering with any other illness and not allergic to any type of food or medicine.