Piercing bump. Size to a smaller one?

Dear sir, I have gotten my ears pierced for 5~7 months now, but just two days ago, I noticed a bump on my left ear, just beside my piercing. It isn't very hard, nor is it very soft. It does hurt when it's being squeezed but no pain if not touch. I suspect that it isn't a keloid, since they grow directly in the piercing. It could be abscesses, which are hard, growing and painful swells, growing from under/behind , instead of right beside of it, which is sorta my case. But mine is shrinking from its original dome shaped size to a smaller one? There is a possibility it could be a boil. I hope I listed enough info for you to help. I am a bit scared that I may need to do a surgery such small matter, so home remedy is very appreciated. Thank you.