oh sweet lady do I feel for you. My 12 year olds friend brought them into our house, and it was hell to get rid of. The best and I mean best way is to get some tea tree oil and mix it with a shampoo and wash her hair, use a nit comb and comb every inch of her hair. Then blow dry it and the straighten it with a flat iron. For furniture you can dilute some of the tea tree oil with warm water in a spray bottle and spray over everything that cannot be washed. HAIR DYE WILL NOT KILL LICE OR NITS!!! GOOD LUCK!