Im not experienced with Hounds, but I know a man who is...And he uses mushers wax, and swears by it. It used by the Husky dog teams.
As well as that, he makes them cross a trough of chicken broth when kennelling them in the evening after a day out, they cant resist the smell and lick there paws for hours, Its supposed to work along with the wax...But as I said, Im not expert, this is just what he has told me and his hounds dont suffer from foot trouble.