I've been trying new saddles and developed a saddle sore on the top of my labia three weeks ago. No matter what saddle I try, it hits the sore, so it's not getting worse, but it's not healing quickly either. I have a century coming up in two weeks and can't imagine enduring this thing for 100 miles.

Any tips for nuking this baby? Or any ointments that would numb it a bit while I ride?Right now I'm putting A&D cream and tea tree oil on it. I'm also riding with chamois cream.