Eli5- similar to pet flea treatments, why can’t they invent a monthly drop for the back of human necks to combat lice?

Question

Eli5- similar to pet flea treatments, why can’t they invent a monthly drop for the back of human necks to combat lice?

In: 3

Answer 1

Honestly because lice is less common once we become older children and adults. It’s common in children because they play together and make a lot more contact with eachother and stuffed toys or mats than say like 12 year olds or older. Lice actually have nothing to do with basic hygiene. Lice in general prefer cleaner hair because it’s easier to navigate. So little kids are rolling around, wrestling, playing in each others hair, sharing toys, yoh name it, that’s why it’s more prevalent in the younger age ranges.