The most obvious sign of infection is pus coming out of the piercing (although on tongue piercings, what looks like pus is often just plaque). If the pus is white, the infection is very minor. Use a strong antiseptic for just a few days. If the pus is yellow, the infection is a bit more serious. If a strong antiseptic doesn’t clear it up within a few days, come in and let us look at it. Green pus indicates a serious infection. Come in as soon as possible, and if you can’t do that, see a doctor. Whatever the case, do not remove your jewelry, as the holes may close around the infection, resulting in an abscess. Do not use ointments, such as Neosporin; they block air from circulating.