“Do the head lice products actually work?”
Many parents think that they don’t and that is based on their own experiences with them. If you keep using them and find your child still has head lice, more often than not that means the product didn’t work. When head lice and eggs get under the product radar they hatch, the lice grow up and off goes the infestation again, building its momentum.
The understanding is that head lice have become increasingly immune to the products, much like bacteria is developing immunity to antibiotics. Head lice are constantly evolving to ensure their survival, and so have adapted and developed immunity to the many head lice products on the market.