i have pih in the lower lid area. Tried medlite, but the results are not drammatic and my skin is dry and crinkley where i had it. i would like to try fraxel on the lower lid, but i do not tolerate hq and i am afraid of pih if i don't prep the skin. i have been using a skin whitener with mulberry extract, liqorice, niacinamide etc. is it enough to prep the skin? my skin is white with yellow undertones and i did ipl before and never had an issue.