We just had them here a few weeks ago too with Iz hun. Horrible and such a PITA to wash and dry everything in hot. We did towels, sheets, undies, pjs over 24 hours to make sure the tablets had kicked in. I had no idea we had to treat in a fortnight though?? The pharmacist never mentioned it when we had a big chat about it all. Sorry to hijack Nai - do you have to rewash everything as well??
I guess you could do the torch at night and check to see if it really is that or something else as MD mentioned.
The other thing I did was to spray down every surface and door handle with Eucalyptus oil, which I use as a spray cleaner anyway.