I talked to the place we got the chicks for and she said to get medicated chick feed so I got medicated chick feed for them. We also have them electrolyte water and buttermilk. So you think the feed is enough. The lady insisted it was.
She is incorrect. Medicated feed will not cure a case of coccidiosis, many times it will not even prevent it. Chicks can and do often still get a full blown case of coccidiosis while on medicated starter becasue the amount of amprolium it contains is so small so it certainly is not going to cure an outbreak. Buttermilk can help to coat the intestines and slow the progress of the cocci protozoa, it may or may not be effective enough to save the chicks. But really the easiest, surest way to treat coccidiosis is to simply run a course of treatment with Corid. It's safe, simple and saves lives.
Something to note: If you do start treating with Corid do not give any more buttermilk until the treatment is complete due to the coating effect it has. You don't want to coat the intestines and potentially protect the cocci from the effects of the Corid. Buttermilk can be given again after the treatment if desired.