I would suggest visiting a board certified plastic surgeon in person, to discuss all possible options surgical and non-surgical.
Thank you for your question and for sharing your picture!
Is there a vaginal area skin treatment? (photo)
Thanks for RealSelf question. I might offer fat grafting to fill out these "wrinkled" areas... But best to seek IN PERSON examinations...
Skin pigmentation around the vagina
Perineal pigmentation can be corrected with skin lightening creams such as Melarase followed by Melapeels to address pigmentation through exfoliation.
Raffy Karamanoukian MD