I may have to use something asap as I have a pullet with a crusty eye but no other symptoms but I am hearing what I think are abnormal semi-coughing noises coming from the flock. I don't see any runny noses or the such, but I think some of them are "dirty" looking, sort of greasy around their face and toward their backs and tails but it just rained here and I may be imagining things, but my gut tells me to treat them all. I used wazine last week and will use valbazen this week in case it it gape worm or something like that, then the crusty eye occured and I want to treat the whole flock to be sure. Anyone have any experience with SMZ vs tylan? The hens eye was cleansed with saline and antibiotic ointment placed. I did not detect an odor. No nasal discharge. And I thought her comb and wattles were ok. I put out emycin (or tetracycline) I cant' remember which it is in their water for now (it is yellow in color) until I can get appropriate treatment. It is what I had on hand. Any other suggestions?