I'm sorry, lice is the worst. 😕 Had a couple poor roommates that got it and had to comb each other's hair out, use the lice killing shampoo, wash everything etc. Wish you the best!
get the lice shampoo and comb and just pick them all out. regular shampoo won't make a difference, they like clean hair. good luck, oh and put anything that can go into the dryer in for a drying cycle, heat kills them.