I am a 15 year old man and my left nipple hurts.it feels like it has a squishy but hard bubble under it about as round as a nickel and about a cm tall.every once in a while I can squeeze my nipple and a clear liquid or sometimes a whitish liquid will come out.the bubble seems to push the nipple out.I know that they are eventually supposed to go away but is there anything at all that I can do now?