Cleaning furniture, blankets, towels, sheets and clothing after a lice infestation is just as important as treating your hair. According to the University of Iowa's Health Care website, lice can live on cloth furniture for up to two days without a host. If left untreated, the lice can re-infect any eligible hosts in the house. The best time to clean lice off of your furniture is on the same day that you treat the main infestation.
Attach the brush attachment to your vacuum's hose.
Vacuum all of the fabric furniture in your home, even if you are not sure that it is infested. Be sure to vacuum in the crevices and the underside of the piece of furniture.
Empty the vacuum cleaner's reservoir into a plastic bag. Seal the bag tightly and throw it away outside.
Repeat steps two and three to be sure that all of the lice have been removed.
Wash your vacuum cleaner's brush attachment with soap and warm water.