Heloo pt- Once you find that the infection has set in, do not try to squeeze the discharge from the infected site. Mix sea salt in a cup of warm water and rinse your mouth with the solution at least three to four times in a day. Especially rinse and gargle the solution after every meal. The sea salt solution will also help to remove the crusts and other debris that has developed around the pierced area. You can also use an antibacterial mouth wash. If there is swelling of lymph nodes in the neck, you need to be careful and immediately seek the physician’s advice. Use gentle tooth brush and take precautions that a food particle does not lodge inside the piercing area. Stop drinking alcohol and quit smoking as they prevent fast healing process. Yogurt helps a lot as it contains good bacterial flora. Eat it regularly twice in a day. For first few days you can chew or suck crushed ice as it helps to reduce inflammation and pain.