So, for around a week, I had this weird lump in my armpit, and I finally got the guts to press it. What came out was quite similiar to the stuff that comes out of pimples, just that it was more fluid and there was a lot of it. Other things that are different to the pimples I've had during my whole life time, are it's big size, it's huge for a pimple, and the location. So I'm confused: Is it pimple, some sort of infection or what??
I'm not entirely sure WHAT it is, but I agree with mostly everyone here that it's probably an infection. Get all the puss out and keep it clean until it heals and your armpit goes back to normal. That's what I do when stuff like that happens.