INGROWN HAIRS IN THE ARMPIT SUCK

Ooooh my god. This is like the 3rd one I've ever had and it is HUGE. 
They are so painful. And I learned the hard way last time that if you attempt to pop them it will make the pain so much worse. It also caused it to get infected and it took forever to go away and it was just really painful and awful. 
How can I make it go away faster? You can't really see how big it is but I can feel it when I touch it. Its as big as a dime and deep and it hurts to lift my arm. I'm about to start waxing my arm pits because I'm done dealing with this. I just bought a new razor.