I was cursed by them. Before you can think about cedar and moth-paper strips, you need to get rid of the infestation. This is how I did it -
- get those sticky fly-paper strips - you can get them in the supermarket. They catch the existing ones - I was horrified how many were in my bedroom.
- hoover like crazy all the carpets - especially under furniture or a bed. That gets rid of the eggs, and should stop more hatching. The eggs look like rice grains.
- the moths breed on a three week cycle - so keep it up til you see a difference.
To be honest, that's really just it - then I got cedar wood balls and strips they sell for moths that look like paper. I don't know if those had much effect, but once I got rid of them all, I had cedar wood AND those strips, and didn't see a recurrance.