There are hundreds of remedies for head lice. Listerine is less messy than most and very easy to find. As a remedy there are several rave reports as to it's workability. The remedy is simple but it does require the combing, the washing bedding etc that would go with any lice treatment. The steps are as follows:
1. Thoroughly message the Listerine into the hair and scalp put on a shower cap and wait some hours. Overnight would not be required but it is an easy way to make sure you waited long enough.
2. Comb the hair with a nit comb. (This would be very difficult to do to ones self so it should be done by someone else.) Do this until you can find no nits by inspection.
3. Wait a week or so and repeat to get the nits you may have missed. Some people like to add an olive oil step but again this is messy, and I'm skipping it here.
There are probably many variations possible but these are the basics. As I mentioned I am assuming that you would clean up the home environment as part of any lice treatment.