The only thing I remember about lice was when my dd had them 8 years ago. I had to wash EVERYTHING she had been in contact with even the car. We took all plush toys and put them in a garbage bag and tossed in the garage for 30 days, used a roach fogger in the car, steam cleaned carpets and couches, washed all bedding and pillows even mattress.
It was horrid and allI have to do to start itching is hear the “L word”!
Much luck with deinfesting your home, Jacqui C. in NE Georgia Mntns