If there are no complications, complete healing usually takes around 4–6 weeks. If there is still swelling after a month, or if the piercing becomes painful or swollen after a period of seeming fine, this may signal an infection or other problem.
Moreover, do tongue piercings get infected easily?
Tongue piercings — especially new ones — are more prone to infections than other piercings because of all the bacteria in your mouth. Much of the bacteria is introduced by eating and drinking.
Just so, is it normal to have a white tongue after piercing?
If you (or your teenager) have just had a tongue piercing, you might see a white coating on your tongue. It’s normal bacterial growth that you can reduce with antifungal mouthwash, like Nystatin (like Nystop®).