I hear mixed reports, my straight iron will or wont kill the eggs?
The problem is that most eggs/nits live right next to the scalp. There is no way to get the flat iron close enough to the scalp to get them. The eggs further from the scalp have already hatched or are dead.
As far as vaseline and olive oil, they both do the same thing. Smother the lice and loosen the glue. I have not used the vaseline method but have the olive oil. I washed it out with Dawn dishwashing liquid and it only took two washes.
The only shampoo my DD8 uses now is the fairytales lice repellent. It is safe for daily use but we only wash it 3 times a week. I also use the repellent spray on her backback and coat. They (fairytales) has a leave in conditioner as well. You may be able to find it on Amazon a bit cheaper. Using the shampoo and spray and keeping my DD's hair up we have been able to avoid them. Lice do not fly. They actually have to walk on the hair. Girls, with the hair down will be more likely to transfer the lice when their hair comes in contact with each other.
Great tip about the combs. I went to the dollar store and bought a big pack when we were going thru it. I thru the combs out after each use. You should boil them. If you use it and catch the lice on the comb and then comb your child's hair (or someone else's) you are just going to transfer the lice again.