The accuser gets jail time. (HT UK Daily Mail)
Pitcured above is Kate Woodhead. She's in jail for making a false rape accusation. She only got three years, but it's a start. If the authorities here in the US would start jailing women (5 to 10 years minimum) for making false rape allegations, they would stop doing it.
UK Daily Mail: Cry rape woman who said boyfriend fed her Pringle sandwich laced with diazepam is jailed