Just read some tips on other uses for mouthwash! One of the commenter's tips was to soak head with mouthwash - I'm presuming it's alcohol based mouthwash - and apparently the eggs and lice will just rinse from the hair. Then I presume use lots of cheap conditioner to comb through the hair and then finally wash. I haven't tried it yet but can see the logic in killing the lice with an astringent. I prefer prevention and use Vosene anti-lice shampoo as a regular shampoo. My son is 10 and is yet to come home with head lice - touch wood!!!