I am 15 years old going on 16 and my right nipple is very puffy. I looked it up and most of the people said it was due to their weight but I am skinny and I still have it. I had the same thing back in 7 grade but it was both nipples and it went away after a month or two, this time it's only one and it's been around 6 months and it hasn't gone away. It seems almost inflated and once when I squeezed it pus came out. It doesn't hurt and is not sore. It is very soft and it shrinks when cold yet seems to inflame in heat. It feels like nothing hard is under it but it's really puffy. I was wondering if anyone has an idea of how to get rid of it.