I'm on the fifth day of treating my 5 girls for coccidiosis. The one hen had it, so I had to treat them all. The one that had it was extremely lethargic and looked in a bad way. After 48 hours of being treated with Coxoid, (I'm not sure if this is available in the U.S.) the difference was amazing, she is so much better. The only thing is, she still has diarrhea. I know it's one of the side effects of the treatment, but none of the others have it. Could it be that her system is just flushing out all the crap if you pardon the pun?