How can I cure my cracked, splitting feet during the summer?

Believe it or not but I was told to use lotrimin fungal cream. I did this several times a day and all the cracks I had on my heels went away and didn't come back for about a month. I had it so bad when i was a nurse I had to walk on the front part of my feet and that was killing me. Now after doing that for several months off and on I haven't had it since.