Here's why:
* Mint mouthwash is not a pediculide, which is a type of insecticide specifically designed to kill lice.
* The active ingredients in mouthwash (like alcohol and menthol) are not effective against lice.
* Lice are highly resistant to many substances, and mouthwash is not strong enough to overcome their natural defenses.
To get rid of head lice, you need to use a product specifically designed to kill them. These can be over-the-counter or prescription treatments.
It is important to follow the instructions carefully and to consult a doctor or pharmacist if you have any questions.