Controlling Spikes

Hi;
It's for more than 1.5 years that I've stopped masturbation (and not having sex), but I have a problem with stopping watching pornography.
Sometimes I have sexual spikes, sudden and strong sexual desires. They usually happen after I had wet dreams. when it happen I can barely control myself and end up searching for pornographic pictures or videos, but It's for a short time and after that I cool down and the desire disappears, like the way it appeared.
Is there anyway to reduce wet dreams? It varies but sometimes I have them for more than 3 times a week! How do I control these spikes?