So, what's the deal with the itching, and how long can nits lurk unnoticed? Itching is your body's allergic reaction to the saliva head lice inject when they feed. This saliva contains an anti-coagulant that helps their feeding process. If you're not allergic to it, you won't itch, and that's where the mystery begins.

It's important to note that itching only occurs when lice are actively feeding, not when they lay their eggs (nits). The real scratching starts after the nits hatch. Some people, particularly those with sensitive skin, might feel the itch sooner, while for others, it may take a while as the population grows. And then there are those who remain blissfully unaware until they see adult lice crawling on their scalp.

To prevent lice from spreading and becoming a bigger issue, regular checks are crucial, especially for children. Using ISpy glo-powder to identify eggs helps you catch an infestation in its early stages. So, remember, the sooner you detect those unwanted guests, the easier it is to bid them farewell.