What finally worked for me was locking in moisture within 60 seconds after...

https://wiki-canyon.win/index.php/Why_Does_Moisturizer_Trap_Water_Better_on_Damp_Skin%3F

What finally worked for me was locking in moisture within 60 seconds after stepping out of the shower. I now use a body lotion with urea around 15% on my heels to soften rough patches. I also make sure to apply SPF on my hands and chest daily