No!Do I need to put out anything to prevent mites n lice coming? Proactive rather than reactive as I have been itching ever since I read up on these things!
Best not to use insecticides preventatively, it can cause resistance....
....then they might not work if and when you really need them.
Keeping wild birds and rodents out of your coop and run is the best preventative.
..and do a bug check regularly.