Pimples, whiteheads

Patient: Hello doctor,I am 14 years old, circumcised and masturbate almost everyday, I’ve had small pimples, whiteheads at the bottom of my penis and on my balls, I’ve had them for a while and they are itchy all the time except when I masturbate. What are these small pimple, whiteheads and how can I get rid of them?