Originally Posted by goenrdoug

nothing grows in antibiotic ointment. stick a little dab of that in the offending spot, maybe rub it in a bit and then just dress and go to work. In my experience, it'll clear up in a day or two off the bike.

Of course, if your saddle/position/shorts/other habits keep it coming back, this is just a treating-the-symptom solution, so I'd still look to address the root causes...