Bump that won’t go down after piercing irritation bump?

I snagged my nose piercing and got an irritation bump, tbh I’m not sure if it got infected also. I had no pain at all, but the bump did have some blood. I applied warm salt water and the bump drained. Now I’m left with a bump that has no fluid in it. This is the second time this happened. As soon as the irritation bump heals it immediately comes back. I haven’t changed my jewellery since I got pierced and it’s been 3 months. Do you think that’s what’s causing it? Because other than the snag, I’ve been taking good care of it and haven’t hit or touched it otherwise.
Bump that won’t go down after piercing irritation bump?
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