Bump under arm pit

A couple days ago I got a bump under my left arm pit, it has alot of pain even when my arm is down or up.  A couple months ago i had one on my right arm pit but it went away and was not that much pain.  Now this one is alot more pain.  What is it, and how to i get ride of it.

Thanks

[Ordinary_me]

Um, I think it's a swollen lymph node.

I have a lump on my neck that's a swollen lymph node, and when I went to the doctor they checked my neck, but they also checked my arm pits and my thigh/crotch area cause they said you can get the same kind of lumps in those places.

Mine hurt for about 3 days but then stopped. My friend had one that hurt a lot though so I think it varies. If you want it to go away you need to either just wait or go to a doctor and get Amoxicillin or something. That's what they gave my friend and me both. Mine got a little smaller but they said it was nothing to worry about so they had me stop taking anything. It's still there but it doesn't hurt or anything.

Anyways, the lumps are usually caused by infections so you should probably take vitamins and stuff cause it'll help you fight infection.
You should probably see a doctor though.