Applying petroleum jelly suffocates the lice by clogging their breathing holes. Some people prefer petroleum jelly even though it is greasier and some studies found that petroleum jelly is better than other home remedies. Coat the hair and scalp, cover it overnight with a shower cap, and wash out the next morning. Comb for nits. Repeat the treatment one week later.
Drench hair with mayonnaise for few hours. Cover the hair using shower cap. Sit in hot Sun for 5-10 minutes, wash hair using warm water and comb immediately to remove lice and eggs that are separated from hair.
Some people believe vinegar will dissolve the sticky glue that the female louse uses to attach her eggs to hair shafts. The acetic acid in vinegar is considered helpful in prepping hair for nit combing after using a bug-killing treatment.