Hi I'm 15 and a few days ago I found a pimple like thing on my penis (the right side if looking down at it). From what I could see it had some pus in it so I tried to pop it, it hurt too much so I stopped. It has only grown in size since then. I have never had sex. I masturbate at least once a day and I try to keep myself very clean down there. Could it be a ingrown hair or what? Should I be worried?

That's just what happens your getting older new things will happen ! Jst wait it will go away !