When I had goats I used ivermec, and another one, alternating. Cydectin, I think it was....
The first time I ever saw lice was years into my goat raising. I had about 50 goats at the time. I was having to milk one she made triple the milk she needed and since I always had bottle babies it was worth it, and as a favor to our local vet I took in an orphan.
I had LONG blonde hair. Down past my waiste.
I always leaned my head on 'hearts' the goat I was having to milk, and never thought anything about it. Well my 3 year old walked by and said "mom, whats those wiggily things in your hair?"
They were all over me. I freaked, I had NEVER had lice. Even as a kid. I ran strait to the house, called the vet, an old family friend (and the one who had brought me the orphaned goat a day or so before) and crying I asked him what to do.
He told me that there was nothing that I could do. goat lice was VERY hard to get rid of. He could give THEM a shot. BUT not me. That I could try washing with lice stuff, it would take double the treatments, but most times he recommended cutting your hair real short for this, as too much nix would break it all off anyway. He kept on, telling me that everything had to be cloroxed, my barn, my house, everything.
Then he said his connection was bad and and hung up.
I just sat down and cried.
A few minutes later the phone rang. My grandmother (we live on the same farm) answered, and was lauging her fool head off. Then she came to tell me. I wasnt interested in her story. Luckily, she was one that didnt belive in self pity and told me anyway.
the one about the dumb blonde who belived everything that was told to her. She said the vet had to pull over because he was laughing so hard.
But finally explained that they cant live on a human, and just to up my worming schedule, and the new baby would get it in some of the milk I was feeding it.
I was so relieved. AND NEVER lived it down. I also never did get him back..... But I never had lice on my goats again after that. And I had well over a hundred goats.