Minihorse asked twice if there was sneezing or nasal discharge. Wheezing or rattles while breathing could be symptoms as well. That is because swollen eyes with drainage can be a sign of a respiratory disease such as MG or coryza, but also could be due to eye pecking or an eye infection. Tylan 50 can be given orally in chickens as well as by injection. I would only medicate birds who are sick. Tylan helps in respiratory diseases, but if it is infected due to pecking or say, an E.coli infection from the bedding, another antibiotic may be needed. Be sure to clean the drainage out of the eye with saline or water, and some Terramycin or plain Neosporin ointment appliedtwice a day to the eye can help.