I use the ivermectin pour on for cattle. This is the dosage I copied down in my notes from another BYCer: use 1 drop for a small OE hen sized bantam, 2 drops for an OE male to a regular small bantam, 3 drops for an average bantam or very small commercial hen, 4 drops for an average adult chicken or small large-breed hen, 5 drops for a large large-fowl bird, and 6 drops for giant breeds, a large bird. That's the blue "ivermectin" not any other '-ectin'
then it's usually twice a year with ivermectin.
Some people throw the eggs away for 10 days. I read where others go ahead and eat them but not sell them. If you are not allergic to Penicillin it shouldn't be a problem. I eat mine, it kills external pests that bite blood is why it works great with mites, it is a wormer too. Apply with a dropper on the back of the neck like you would a dog, make sure to part the feathers so you drop it onto the skin. If you do the oil treatment of the legs at the same time, it seems to work the fastest.