Treat the burn with stain remover.Scrub the burn mark.fill the sink with cold water,washing powder & bleach.Mix the water really well, leave in sink for 20 minutes.Scrub it again & rinse. Put in the wash, then dry it. I found this on the web at www.ehow.com, my wife is just about to try it on her pants.
Good luck.
Mal, November 2005