Try some mayonnaise
Mayonnaise is great for macaroni salad, but does it work as a head lice treatment? Lice can close and open their breathing holes to prevent suffocation, so there’s no surety that it will work. There are various conflicting reports on the advantage of this home remedy.
People who’ve tried this remedy recommend using original, full-fat mayonnaise. Spread it on the whole scalp and cover your head with a shower cap. Let the mayo perform its task overnight—shampoo in the morning and comb for nits. Repeat after one week to kill any louse that hatched later from nits that survive the remedy.