Its happens to alot of kids here in New Zealand..
As for me, I have only had this experience once in my life with my sister here in nz. This is not something I grew up with living in the caribbean and america. So the day I saw this in my sisters hair, trust me it was very foreign to me. Hours of research later, I came up with a bomb plan.
Remember my sisters hair is an afro textured and curly, so if its harder to manage. So this made it super easy and stress free.
This is how I managed to eliminate this gross bug in one day:
1. Section the hair and apply the mayo all throughout. This will drown the nits.
2. Place the plastic bag on the head and tie down. This will suffocate them.
3. Leave on for an hour or 2 or 3.
4. Wash the hair out with any normal shampoo and conditioner. You can opt to buy tea tree shampoo if your particular or any other type specifically for lice.
5. Because she has afro texture hair. I sprayed on a heat protectant which has natural oils etc, combed and heat stretched her hair with a blow dryer. For straighter hair types you can start the blow drying process now.
6. I did this close to the outside or back door, so I could disinfect and sweep any possible nits outside.
7. Once the hair is completely dried. Then you can straighten small sections, from the roots to the tips. This will fry and burn any remaining eggs.
8. All the nits would of drowned or suffocated and be wash away by now. So applying heat to the roots to tips will further eliminate any potential break outs from happening.
Hopefully this helps you guys manage this annoying situation. It should make it super easy to get rid of nits.
Take care :)