hi Doctor, i'm 21 years old girl. my height is 178cm and my weight is 95kg. my neck area, armpit, inner thighs and area below my breast are very dark. when i googled about it i came to know that it is "acanthosis nigricans". now i have started to take steps for reducing my weight by going for aerobics, walking, dieting. i want to know if i reduce my weight i will be able to get rid off this dark spots and my skin will become normal like before or should i consult a skin doctor?