Thanks for the query,
you might be suffering from Plantar psoriasis
It usually presents in the form of non healing cuts.
use a combination of urea and salicylic acid
This will help you.
Various products like cotaryl, silkee etc are available
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you a good health.