I don't know if they have this in Europe or not but I found an electric comb that zaps the lice. It runs on AA batteries and it was the one thing that finally took care of S14's outbreak a couple of years ago. He was big into hats then, not so much now. Good luck with that as I know it is a big pain.
Take everything else as it comes.
hugs, kat
Me-53(and learning!) S24, S21, D18, D17 Just keep swimming, Just keep swimming. Dory