What finally worked for me was a simple routine after every shower. I make sure...

https://highstylife.com/how-often-should-i-use-urea-cream-on-my-heels-the-ultimate-heel-care-routine-explained/

What finally worked for me was a simple routine after every shower. I make sure to moisturize within 60 seconds while my skin is still damp. Using a cream with 10% urea on my heels softened the rough patches that nothing else touched