Iluveggers
Crossing the Road
When my chickies had similar symptoms, I gave them corid in their water as suggested. I also fed them a wet mash with their food mixed with the corid water. Make sure to clean/ disinfect your brooder and put fresh shavings/bedding in as the coccidosis is spread in their droppings. I saw blood in poop for 48 hours (not all just one here or there), & then it disappeared but I finished the whole treatment. You can also give them egg yolk or plain Greek yogurt in tiny bits if they look like they need strength (it should not replace their regular food).
Good luck.
Good luck.