Mayonnaise: This is an absolute winner for head lice.
Slather it on the hair, make sure to cover every strand of hair. Cover the head with a plastic bag (but don’t suffocate the victim… hehe) and sit in the sun for 30min.
Use a lice comb to get the critters out… they will be dead and the nits will slide off the hair shafts. – Listed by Belinda Du Preez, Optimum Health, South Africa, October 30, 2020