Massive long shot here but we seem to be suffering with bird mites. Can’t see anything at all but can feel myself getting bitten. It actually hurts. It’s happening up to 100 times a day. I’ve tried everything, indorex, every spray going, hoovering daily, diatomaceous earth, I’ve had pest control out and nothing works. It’s been going on for the nest part of four months and I have no idea what to do. A bird mite specialist has said the lowest rate is 1500+vat which I just don’t have. Any suggestions would be massively appreciated