I have dermal PIH from years of tweezing my upper lip hair and not using sunscreen. I have PCOS so have above average hair growth. It is very dark, deep and grey. My derm prescribed Triluma and said it will help a little, and the rest would be up to time. Is there anything else I can do? I stopped plucking two months ago and am currently trimming the hair. For hair removal, is electrolysis or laser hair removal better (which would cause less damage). Is this deep pigmentation permanent? If not, how long could it take to resolve? I now wear sunblock. Please help, I am very depressed.. Thank you very much.