[HiTech RedNeck]

If you can hit the bugs directly, a lot of common household chemicals will slay them.

It’s the bugs we can’t directly slay that are causing the problems. Most modern insecticides might be a joke to them. They are only looking to eat blood, so they won’t be eating other things that aren’t blood but which might have insecticides on them.

[Ransomed]

Well I take it a lot of contact poisons doesn’t work on them very well. Like praying spectracide or whatever around a clean bed/sleeping area.

Freegards

[Abby4116]

I have never seen one (other than pictures) but am blown away by the number of ways one can bring them inside (library books?) and how hard it is to get rid of them.

If your friend can possibly afford it, call the exterminator asap - they multiply quickly making it that much harder to rid one's home of them.