It's not good advice. Blood in the stools, especially when it's been confirmed that the chickens have coccidiosis, is an indication that the intestines are being inflamed by the coccidia, causing bacteria to grow into a condition called enteritis. It can be very serious.
Get the vet to write a prescription for this. https://jedds.com/products/trimethoprin-sulfa-medpet?_pos=1&_sid=83dcb7a2a&_ss=r Or order it yourself . It's just that no time should be wasted waiting for it to come in the mail. It can be mixed into the drinking water.
The usual treatment with Corid is for five days, a week off, then five more days. You can mix the Corid with the sulfa.
Get the vet to write a prescription for this. https://jedds.com/products/trimethoprin-sulfa-medpet?_pos=1&_sid=83dcb7a2a&_ss=r Or order it yourself . It's just that no time should be wasted waiting for it to come in the mail. It can be mixed into the drinking water.
The usual treatment with Corid is for five days, a week off, then five more days. You can mix the Corid with the sulfa.