This may seem a little draconian, but it may work for you, considering your criteria: The oldest remedy with which I am familiar is shaving the head. No chemicals at all on kid. Make sure no one else has any signs of the beasties. You may need to treat others in the house at the same time. I guess you'll have to decide if chemicals for others is acceptable.

However, If you *really* want to be sure to get rid of them all...you will need to treat *everything* in the house. And I mean **everything**. Wash everything made of fabric. All your clothes, all the towels, all the sheets and pillow cases. Then, toss everything else made of fabric into garbage bags for 3-4 weeks. Stuffed animals, pillows, everything. After that, you'll need to either treat your mattresses with something, or find very large plastic bags to throw them into for 3-4 weeks (seal 'em into large plastic sheets with duct tape if you can't find bags large enough). But wait, there's more...You'll need to do something about your carpets as well. If you are absolutely adamant that you will not use any chemicals, you'll need to steam clean them, maybe several times, with lots of REALLY HOT water and carpet cleaner. Keep at it until they are all gone. This may take more than one try...sorry, that's the best news I can give you for a chemical free treatment.

And the real killer is, there's no guarantee that the kid won't pick up the very same problem 6 months or a year later.

One of my sisters (not CarolC) went through this *3 times* with her daughter over the course of a year or so. I went through it twice for scabbies. Nasty blighters, them.

Good luck!