Famous Light Fixture Does Not Cover Hole Ideas. The two options you can consider are a plaster patching compound or a decorative ring that goes around the light. So even if you cut the power to the light fixture, there may still be live wires in the junction box.

Web if the light bulb does not light up at all, follow this troubleshooting procedure: Web if you don't want to cover it with a medallion as the other answer suggests (a great answer, and popular practice in old houses) you will end up having to paint, so you might as well just fix the drywall properly. If you have the skills, you could also use a piece of sheetrock from another room or from a hardware store.