I am a type 4 on the Fitzpatrick scale & developed cloasma when pregnant 12 years ago which has worsened over the years due to moving to a hot climate & although I wear sunscreen daily, my condition has got worse - I have dark patches on my cheeks & forehead...I have been for a consultation & the doctor recommends the Clear & Brilliant Laser... However, another clinic has recommended the Picosure... Will this be safe to use on my skin?? Many thanks.