What I have read (and am about to do if someone doesnt stop me) is to gently wipe the cigar down with rubbing alcohol.
I've got a couple CC's that I don't want to lose OR ruin. They've got just a little bit of mold growing around the cap, and obviously I want to stop it in its tracks NOW
humidor likewise has been wiped with rubbing alcohol and is reseasoning, while everything waits in ziplock bags...
(gah, and I was only gone for 3 weeks... its past time to switch to beads, they're on the way!)