Hi and for about a year and a half now i have had these pimples on my penis shaft, they are just like pimples i would pop one and puss would come out, but this has been going on for a year and a half now, and right now i have 3 of these pimples on my shaft, they dont hurt, i have been to a doctor they said it was a blocked glad, if so how long does it take for them to go away, one of them has left a scar i dont want any more scars, if anyone has any ideas please do speak thanks jamie.