How do i fix the horn?

What is your question?

I was driving and i tried to use my horn to say hi to a friend but it didn't work. All i could hear was a clicking sound coming from behind the dash. I checked the fuses and the wiring going to it and it is all in good condition. I also check the relay that controls the horn and the alarm. The alarm also doesn't work. the lights flash but the horn doesn't go off. What else should i look at?