Well these folks gave you good advise.
I learned something from a BYC accounting from a valuble article.
I will share it with you.
TREATING CHICKENS FOR COCCIDIOSIS.
WHAT TO USE AND WHY?
http://www.backyardchickens.com/a/coccidiosis-how-to-treat-…
How to Treat Coccidiosis?...
Treatment will work effectively and quickly if started when you see the first signs of disease
The treatment I have read about that is said to be the best is to separate your chickens and then use Corid 9.6% liquid solution. The dosage is 9.5cc to a gallon of water for five days. And there is no withdrawal period. You do need to make a fresh batch every day, and keep him/her away from... all the other chickens. Corid takes care of all 9 cocci that chickens could get.
Another treatment is Sulment (Sulfadimethoxine). But I have read it is not as effective as corid and only treats 2 kinds of cocci. There is also a 10 day withdrawal period for sulmet. Sulmet is a lot harder on chickens then Corid is. In case you want to try sulmet the dosage is 2 Tablespoons to a gallon of water for 2 days. Then reduce to 1 Tablespoon to a gallon for 4 days. But I would recommend Corid over Sulmet.
There are some home-aid treatments like the Milk Flush which is 4 pounds of dried milk, 2 pounds of corn meal, 2 pounds of oatmeal, and 1 pound of bran for 3-5 days feeding only this nothing else. This will flush the system out. However I don't know if this method has ever worked and would again encourage you to treat with Corid. In case you did want to try this though here is more information
http://www.backyardchickens.com/…/milk-flush-for-coccidiosis
Follow up treatment with vitamin supplement (especially A and K)
Use liquid treatment for treating chickens since chicks/chickens don't usually eat when infected by cocci.
Glenda Heywood
My favorite additive to treating their body to get well is tis
WET MASH PROBIOTIC RECIPE
1 cup od dry mash
1/8 cup of flax seed meal (THE KIND FOR HUMANS)
2 cups of water
1/4 cup of plain yoguart.
Mix good and if too dry add more water DO NOT MAKE SLOOPY.
make more like cookie dough.
Now add
The Vit K and Vit A
by crushing the tablet in tablespoon.
If liquid pills cut ends off pill and add to mix and stir good.
NOW THIS IS IMPORTANT depending on the amount of chicks you are feeding do this
FOR EACH CHICK USE 2 TSP PER CHICK, AND VIT K AND VIT A FOR EACH CHICK.
Usually I fed it to the whole bunch of chicks as if one is infected so the others will get it.
feed this every day for 7 days as your medicating them
After they are well feed it once a week .