I use Ivomec Pour On with great success as a pour on. Goats have thinner skin than cows and some worry about irritation, but no problem noted here. Using 1 cc per 22#. It is so easy, and very low cost for me as I just swipe it from hubby's cow med cabinet.
I asked this a long while back and was told do NOT use it as a pour on, especially if you are intending it to treat internal parasites. Have you have a vet test for parasites?