vets recommend cattle be treated for 10 days, goats are not cows but I have not had a problem with cocci returning since I started treating at least 7 days, my kids grow bigger faster and moma (who has access to the treated water) does not get the cocci blooms most does get, she doesnt loose much condition nor loose milk production, when I first started with goats I would do only 5 days and keep moma away from it, well, the kids had problems with cocci constantly, seemed like 1-2 weeks after the 5 days I was treating again, and moma skinny as a rail with everything I could feed her, not much milk, (a poor doer in my definition) you have seen my goats so you know I am VERY picky :hide:, this may not work for everybody, but it works for me! and maybe for someone who doesnt dry lot 5 days is enough.
You can always do a prevention every 21 days. Do the same as treatment, if it keeps occurring.
They are just picking it back up from the ground again. Cocci is in the ground. Stress triggers it as well.