You can also use plain old white Sugar with a few drops of water as a cleansing paste, used just like the olive oil and salt. This keeps debris out of the pores.
Manuka honey (medicinal grade) used as a facial daily will start closing up the pores that have been cleaned out. I've been doing this daily for a month and have seen noticeable results. I did a fast too and on the 4th or 5th day my pores started dumping lots of oil and I rubbed the honey at the end of the 45 minute facial and it was pulling out all sorts of junk from my pores, even those hard to get ones on the nose.
It's great to clean out the pores but if they stay enlarged it's only inviting more debris -