Couple of months back i encountered few small white boils on my penis and the foreskin. I immediately consulted dermatologist and he said this is just infection might be due to hygene or unprotected sex with partner who already hd this infection. He then gave me some creams and tablets. In a month i was ok the white boils went. But i was noticing few red boil on the forehead. This clearly appears when my penis is erect or if i press my forehead, Its very small no itch no pain not sure if this is normal or a serious concern. Please help.