Cleaning methods vary somewhat depending on where the piercing is. A pierced tongue requires a diluted antiseptic mouthwash two to three times a day.
Salt water helps to stimulate blood circulation, which facilitates healing.
For other parts of the body, daily washings with liquid antibacterial soap are a good idea. Diamond recommends rotating the jewelry while washing. This works the soap into the piercing. Soaking the area with the saltwater solution also helps the healing. Diamond says not to clean new piercings with rubbing alcohol, Betadine or hydrogen peroxide because they are too strong, and cause drying, which can hinder healing.