It is a minefield of products to negotiate and decide from! Personally, I try to avoid putting a barrier cream on all the time, since this only moistens the area, providing the ideal climate for the bacteria to spread. Then of course there is the removal of the cream every evening, which means more washing and more wet...
I'm a big advocate of turn out 'wraps.' (Their actual name as momentarily eluded me!) They tend to keep the legs try from the mud, meaning the only treatment required is to carefully pick off any lose scabs.