I got a great question from a colleague I know from the annual conferences for the Association of Professional Piercers:
Piercing question - Betadine leaves a brown mess, what do you clean it off with so people don't leave with a big yellow/brown patch on their face? Alcohol wipes?
No! Not alcohol--that could sting if it gets too close to the new piercing and is far too harsh for a fresh piercing. And removing the unattractive coloration isn't just an aesthetic issue. Iodine should be removed from the skin after the piercing is done to prevent any irritation.
I use these awesome sterile saline pads that come individually wrapped in foil packets. It is the BEST part of a piercing, because when you put it on, it cools the area and is very effective to help relieve any stinging or heat sensations. The pads feel almost as though they have been refrigerated, but that's just how they feel when they come out of the packet.