@debi1 , ivermectin is pretty much useless as poultry de-wormer. Get yourself some fenbendazole (Safeguard or Panacur). I think the liquid is prescription only in Canada, but the horse paste is over the counter. Dose of liquid or paste is 0.23 ml per pound orally for five consecutive days. This dose of fenbendazole will treat most worms.
Albendazole (Valbazen) could also be used, but I'm not sure what dose is needed to treat all worms.
-Kathy
My first suspicion is a bacterial infection, but we all jump to the conclusion that best fits our personal experiences. A fecal exam is the first best course of action, why would anyone treat for an ailment when you don't know what you are treating for?
Could the OP post a very close close-up of the face for us to look at? Like this;
Both of these boys were suffering from a bacterial infection. Had I gone blindly into de-worming them they both would have died. I can not stress the importance of Fecal Float Exams, if you can't find someone to do them buy the equipment and start doing them yourself.