As a lay follower how to deal with uncontrollable sexual urges?

I have totally refrained from sexual misconduct and after reading the answers about Masturbation to the previous question on this site I have even refrained from that. Also, I have practically zero sexual thoughts during meditation. But you see, as we eat food, the body automatically produces semen which is beyond our control. This accumulates and as the epididymis gets full either it ends up in a nightfall or heightened sexual urges which then gets beyond control. How to deal with this problem? Do monks face this problem?