I am 30 years old male and have pigmentation on my face little n more on neck and on my back both the sides. I had tis problem in 2005 where I used some creams not tat effective then used betnovate which cleared but now again it started. On back it was gone but again it started last week it's more now. On neck it's not going at pls suggest me permanent treatment pls. Am worried with this problem.