Yeah had a few nasty saddle sores myself this year.
Personally I find the best remedy is to:
1. always use a decent chamois cream for any distance. (can't recall the make of the one I've got but its sort of medicated)
2. once I've got a saddle sore, lots of baths and plenty of sudocrem on it.
3. and lay off the bike for a few days/week and jog instead.