Hello, I am a 22 years old and I have a red, swollen, small ball on my left nipple. I am not pregnant and have never been. I noticed the swelling about 5 days ago and it s only gotten more painful and more red.I have always had this one single, thick hair on my nipple exactly where the infection is, and it seems as if the infection had started there because that is where I noticed it. However, I plucked the hair out yesterday because I thought this might help, but now the pore is completely closed and the infection is still there under the skin. If I press, nothing comes out through the pore since it is completely closed. What could it be? How could I take care of it? Please let me know since I am freaking out! Thanks!!!