My niece came and stayed all night at our home, we did not know she had head lice. I found it in my grand-daughters hair about a week later. Her hair hangs all the way to her waist. I also got the little "darn" things. I too, have hair not quite as long as hers. We did the olive oil, wrapped out heads in saran wrap and tied a plastic bag around our heads. Slept all night, in the morning I rinsed our heads first with vinegar. I then put some tea tree oil in the shampoo and washed our hair. I sprayed some no more tangles on our hair and then combed it out with a nit comb. One week later I repeated the process all over again. Did not see any nits or bugs the second time. We used the shampoo all week with the tea tree oil in it. Still in the shampoo to date.
P. S. Got them out of my nieces hair too however I used the alcohol and vinegar mixture with the tea tree oil and wrapped her head with saran wrap and plastic bag. (didn't have olive oil) She kept it one for 2 hours, combed her hair out with nit comb. Sent her home with shampoo with tea oil in it. One week later I repeated except this time I used the olive oil, vinegar and tea tree oil-she was nit and bug free.
Olive Oil, Vinegar and Tea Tree Oil
Lice: I have found that olive oil, vinegar & tea tree oil works great. I soaked my daughter's head in Olive oil with a shower cap on it for 2 plus hours as soon as we discovered she had lice. We then used the metal nit combs to comb through her hair. You have to be very thorough doing this. It's best to section off areas of the hair. Using magnifying glasses and working in the best light - the outside sun - is the best way to be thorough about getting the nits. After combing through her hair the first time I then soaked her hair in vinegar for an hour or more with a different shower cap on. Then we combed through her hair again - with the tiny metal toothed combs - very very thoroughly. I rinsed the comb often in a bucket so the nits would be dislodged. Go over and over the sections of hair to get those nits and any left over lice. Most people get the lice but aren't thorough enough about getting the nits. The nits are eggs and they will hatch if you don't get rid of them. The whole cycle can start over if you aren't thorough with nit picking. She then shampooed with her regular shampoo that we put tea tree oil in - about 10 drops in a typical bottle of shampoo. We did the same in her conditioner but added twice as much tea tree oil. While the conditioner was in her hair she combed it through to dislodge any loosened nits/eggs. We continue to use the tea tree products and comb it through her hair periodically to ensure she no longer has lice. We have found this method to be better than using the chemicals.