If you really hate cows that much, get out of the business. Find something you like to do, life is too short.

If you want to help your cows hairy warts, a footbath is the best solution. Second best is a tetracycline solution sprayed on CLEAN feet in the parlor-but be aware you are playing with fire, having tetracycline flying around in the parlor. A copper sulfate spray will help some, but it won't do as much good as the tetracycline.

Back before we had a footbath, or very many hairy warts, I would tie the cows foot up and inject 2cc's of Naxcel into the foot just above the hard part. Worked like a charm, but each cow is a pretty good wrestling match(I was younger/stronger/stupider then). I know some folks have done the same thing, only used penicillin, without having milk residue problems but I have always been scared to try it.