Banana01
Songster
Just an fyi all the sulfa i have seen the medicine requires breaks in between treatments. The 10 day sulfa treatment is supposed to be 3 on, 2 off, 3 on. I have read that is a requirement for the medicine to properly work against the cocci but i do not have the source. Here is my bottle, and the instructions for the treatment of cocci. It is possible a vet error, but lets hope your hen makes it.