Remedies for cracked and bleeding heels?

My feet suddenly got so dry that they are cracked and bleeding and it hurts a lot. Never had this happen before. Does anyone else have this problem and do you have any tips on how to make it better? I have currently rubbed my feet with coconut oil, put my feet in plastic bags with socks over and I plan to sleep with it, hoping it will help. I do this when I have dry hands, so I'm thinking it probably works for feet too.