Don't speak to them.

A monk asked his spiritual Father. "What to do? My thoughts are always at prostitution and I cannot calm, my soul is so sad"... And his spiritual Father replied: "When the daemons throw such thoughts, never talk to them. Because their plan is to throw such thoughts. But they cannot force us . It is your choice to accept them or not. When the thoughts are coming, don't talk to them, but say to Him: My Lord Jesus Christ show mercy. And you will see that those thoughts will melt like a candle in front of the fire".