If you can get calendula beeswax ointment, that's what I used to use back before I knew saddles were supposed to fit. Lots of artisans make ointments like that - check your farmers' market or local natural food store.

Raw honey might be another thing to try, though I don't know about getting anything sugary in that area.

Nubütte is sold as a chamois cream, but I've had better luck with it as a healing ointment. Good stuff, just doesn't lubricate very well IME - your LBS might carry it.