I have very dry callouses on my heels that get so bad they crack and bleed. it kills me to walk sometimes. i have tried removing the callouses with razor and a ped egg, but that just seems to make my heels more sensitive. I walk alot dureing the day (miles) and every step seems to open up a new crack. I have tried aquaphilic and socks overnight, i have had pedicures, and i have worked on them myself with lotions and tools. is there a remedy for this condition? what could the cause be? and should i see a dermatologist?