I will say this, if he's not specifically using Provent-a-Mite, he's wasting his time.

I had a baby once who had mites like that, and I bought a blue bottle of "Mite Killer" from the petstore. That stuff didn't help at all, and the mites ended up killing my poor baby.

When I saw a single mite on my new baby, I bought the Provent-a-Mite, and no more mites, ever! Don't take chances with your baby, use what works.

There is a sticky here on why the people of BP.NET use it, and reading that was enough for me. It is easy to order online, so let your friend know he needs it. If you have a reptile store near you, they might carry it.

Gale