Skin between ass and vagina, what is it? (photo)

You have a hemorrhoid with redundant skin. When your hemorrhoid is not flared up you';; mainly notice a skin tag. You can have the anal skin tag excised or a hemorrhoidectomy if it persistently flares up.Best of luck,Oscar A. Aguirre, MDAguirre Specialty Care - Pelvic Surgery & Intimate Aesthetics®

This appears to be a hemorrhoid.  You can try hemorrhoid medication to get the swelling down but it may require surgical removal.  This is probably not a cosmetic procedure unless other things are going on.  Typically hemorrhoids are covered by insurance.  Some gastroenterologists do banding procedures in their offices.   Colorectal surgeons and general surgeons handle this as well.  

They are frequently multiple. Some are internal and require a little bit of effort to diagnose. Treatment is suppositories or excision. Excision has a short, but painful recovery.