So it's basically like having your ears pierced... Although be warned, the gun is REALLY REALLY LOUD because it's so close to your ear!
It hurts for longer than having your ear lobes pierced, and it swells up quite a bit. But keep it clean and it'll be fine.
My friend who had his nose pierced says that it doesn't hurt a lot- same as ears basically- but it's more difficult to keep the inside clean. They do it with a needle.
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