Both my feet are hard and cracked and now the soles are red and burning so much its hard to walk on them.

See a physician: There are several dermatological conditions that could cause redness and scaling but as there is pain and redness with burning, I would suggest checking in with a physician.

Infection : Could be a start of infection. Need to see foot doctor. Soak your feet with warm water and 1 cup of Epsom salt and one cup of white vinegar twice daily for 10 min each time