If youre ever around someone with lice and there's a possibility of contamination lol, you can fix it really quick. My mom had done this the 2 times we spent the night with cousins who ended up getting it very soon after we saw them and we avoided it.
1. Wash your hair with shampoo, peppermint, and tea tree oil. And plenty of teatree.
2. Freeze your hair brushes to kill of any bugs. Then wash them in hot soapy water.
3. Go ahead and wash your sheets and pillows in hot water.
Hope this helps!