Sorry still confused about Head lice.?

Girl, let me tell you a story that happen to me with head lice. Years ago, my children were in day care. After about a month I noticed my head itched, my children were always scratching their heads. I took a flash light and started separating the hair and to my surprised I seen little tiny nats. Which later revealed head lice" I bought the medicine shampoo. Boil hair brushes, va carpets, washed all bed linens and cleaned the furniture. Took all stuff animals sealed in plastic bags for two weeks. The whole thing. Thought I was rid of them. Then one evening, my son had little red bite marks around his neck. Started looking and they were back. Done the whole thing over. Same thing a month later. Now I was mad and upset. Took the children to the doctor. He prescribed a prescription medicine. Same thing next month. Finally after 250.00 poorer. I had to cut my daughter's long beautiful hair to a very short hair cut. Shaved my son's head and cut my hair. Took them out of day care and had my mother in law watched them. They were gone. I have never had them again. It took me a year to rid our family of these filthy bugs. You have to get each and every egg out of their head. Mayonnaise is what my doctor had me use after I done the shampoo. Mayonnaise or cooking oil. This will not only kill them, but help get the eggs off of the hair. It also kept them away. I put mayonnaise on their heads every week. So use the medicated shampoo and start using mayonnaise or cooking oil and leave on hair for 30 minutes. Do this for a few weeks and they should be gone for good.