My 2 roosters & 18 hens have had what appears to be a chicken "cold" for well over 6 weeks now. (Yes I realize that chickens don't catch colds, but this is the best way to describe it.) They have runny noses, sneeze all the time & many of them are hoarse. So I have been giving them vitamins in their water hoping they could fight it off on their own. However the other day, I found worms in their poop. They looked like earth worms, but only about an inch long. (There were 4 worms in one poop!) The only thing that I could find that covered a whole range of worms & was safe for egg layers was Rooster Booster's Dewormer. It says on the bottle that it also is used for the treatment of Chronic Respiratory Disease. The instructions state to mix 1.25 lbs with 50 lbs of feed. I am wondering if anyone has used Rooster Boosters Dewormer before for either worms or for Chronic Respiratory Disease? The bottle doesn't state how much each bird needs or for how long. I have been feeding it to them now for 3 days. Their "colds" appear to be getting better. There are still worms in their poop (although they are significantly smaller.) Does anyone know how long I should give it to them for???? Also the bottle states that you should stop giving it to broilers 3 days before slaughter. But what about hens who are laying eggs. Is it safe to eat their eggs? If not how long should I wait for?? Thank you in advance.