Please help! i'm 15 years old and i started to have small white pimples on my penis, but only on the scrotum not the head, i ask my friend if he ever had this problem he said yes and that for me to wash down there real real good when i take a shower, please answer me, is this normal? and if it is how long does it take to go away? and is my friend right about washing down there real real good?