Why can lice not be treated with pesticides?

Lice have developed a significant level of resistance to various chemical treatments over time. This resistance stems from a combination of factors such as overuse and misapplication of pesticides, which have allowed some lice populations to survive and pass on their resistant traits to subsequent generations. As a result, many common pesticides used to eliminate lice have become less effective, making it challenging to rely solely on chemical methods for treatment. Understanding this resistance is crucial for developing effective management strategies against lice infestations, and it highlights the importance of combining treatments with non-chemical approaches to achieve better results.