Hey ! I am a guy of age 15 ,, and i am having a problem,, it has been more than 2 years,, that i have got a lump under my nipple skin ,, and i know it's a phase of puberty through which some guys have to go.. but it has been 2 days when i started going to swimming,, and i'm having a serious kind of burning and redness around the tip of my nipple and I'm really worried about it,, I want some help from you guys.. as it can also be some kind of allergy .. Help Please !