In ZBrush, how can I smooth the edges/vertices/faces?

I have an object, but the edges of it are all squiggly and jagged. Is there some way I can smooth them out?

Thanks in advance.

 

@unity_uN6q1ZwzyKHMWg
If it's an object with sharp edges like a cube, add more polys close to the area that has sharp edges, and then use a brush that can push or pull, the polys in the area close to it. Then use the smooth option in zbrush. Unfortunately, I can't remember the actual name, of the smooth option. But that is how I do it in Sculptris.