I have a roll of extra skin under each of my but cheeks...how do i get rid of them?

I am very thin but was sick a year ago and was on bed rest and basically was sitting 24/7 for half a year and now i have these weird rolls under my . i think my skin/fat formed or was distributed weird because i sat for so long. now i stand up and there are weird rolls. i really want to get ride of them but don't know how...help please. oh and i am a woman