Kid getting his hair combed for head lice.
When our own kids where in the head lice stage at school we looked of an alternative to the harsh over-the-counter drug store insecticide based head lice treatments. I’m going by memory here but I believe their effectiveness was shockingly low around 40 % kill rate. I looked on , then Pubmed, to see if there was any research of a more effective natural treatment. Voila! We found this research , tried it and it worked; not to mention it was easier to do , not more expensive , and didn’t feel like it was burning our kids scalp! You’ll have to follow the link but it’s a combo of tea tree oil , lavender oil and shampoo!