Use this cream
https://www.eucerinus.com/products/repair/eucerin-intensive-repair-extra-enriched-foot-creme.html
It works, I give myself pedicures about every three weeks and my feet do not get rough in between even though I wear nothing but sandals and go barefoot while at home, even outside. Just put this on my feet as soon as I step out of the shower and it works. Nothing else ever did for me.