I had a mite/lice scare before my girls started laying so I started doing it as a preventative. Since they weren't laying at the time, I haven't had to deal with deciding whether or not to eat the eggs. I am interested to hear what others do, because it will be an issue for me this spring.
And I use it as treatment... I used ivermectin pour on as preventative but that didn't work so hot. It is not approved for use in birds. Many people use Sevin dust or permethrin dust, but that takes at least 2 if not way more treatments at 10 day intervals, I decided to go with FrontLine even though it is mostly unproven and not approved for use on non-mammals.
This is just me personally, but I eat the eggs pretty much no matter what, throw only the first few days after treatment away if at all. Most of mine weren't laying though when it happened. I do not sell or give away eggs for 14 days after treatment.
Thank you both for the info !