First up, the wrong use of a spray gun. If you are too far from the surface, too close, or spraying at an angle, the paint can splatter in unintended areas. The ideal distance between the spray ...

Heloise Charlie, to unclog the can of spray paint, you need to remove the nozzle if the nozzle is removable, then soak it in either a paint thinner or mineral spirits. Let it soak for about 24 hours.