I have been trying to decide how to treat my bantam cochin for what I believe to be lice or mites. He is missing the feathers around his neck and although I saw no signs of an infestation when I checked him out, he does seem to be itching a lot. Ive read on here that some use a poultry dust, others use seven dust and something called Ivomec. What is the best treatment and if i choose to also use Ivomec, what is the dosage because I only see it for livestock such as cows and goats. Please give me your opinions of what to use and thanks for any advice.