Yes, got something called Sulmet, a drinking water additive that is an antibiotic. It's supposed to help with infectious coryza, cholera, pulliorum and coccidiosis. You just add the recommended amount to the water. One of my pullets looked weak and sick at about 14 weeks of age and I didn't know what it was, so we got this stuff and treated everyone and in a couple of days she looked fine again.