"My niece gave it to me. My brother and sister-in-law don't care about hygiene."
"I must have gotten it from the chair at the movie theatre!"
"I think my son's best friend has it. I'm not letting him come over anymore."
When someone gets head lice, they want to know where they got it from. That's understandable. However, it is very likely you will never find out. You could get it from many places, and just because you think you know someone who has head lice, that doesn't mean that they were the source of your problem. Don't get mad at someone else because you think they gave it to you. They got it the same way you got it - from an unknown source. It wasn't because they didn't care about hygiene or grooming. It wasn't because they had a messy home or were neglectful. They just got it. If you start pointing fingers and getting mad, then you are the pot calling the kettle black. If you are going to confront someone who you think gave you head lice, it would better if you just approached them with understanding and information. Because now, you are all in it together.
Toxins, corrosive materials, allergens, things that can burn, things that are carcinogenic - I know you want these bugs off of you, but don't put yourself at risk. It's not worth it because (a) unlike head lice (which is really just a yucky inconvenience), these "remedies" can really cause serious health problems, and (b) nothing will as work well as picking out every louse and egg. Nothing. So just pick - you will feel much better for it.
However, if you think you have head lice, answer some questions like these for yourself:
Do I have any itching/bites on ANY other parts of my body?
Do I feel ill or have any other symptoms (such as vomiting, diarrhea, muscle or joint aches, fatigue, flaky skin)?
If you are experiencing any other unusual symptoms besides the itchiness on your scalp, there may be something other than head lice going on. Especially if you haven't actually seen any bugs or eggs on your scalp. There are other illness, and other parasites, that can cause your scalp to be itchy. Some that can cause real health problems. If you call me, I will ask you questions. And while I can still come and check for head lice, I may recommend that you visit your family doctor.