Kindly don't panic you already have infectious coryza if not wet fowl pox. Kindly. Isolate the sick to separate unit and manage the condition by squeezing out the white substance as can be seen when you try opening the swollen eye. Wipe with 10% povidone and apply. Oxtetracylin cream. The point Tender love and care to keep the eyes open. Otherwise the birds don't die of the disease but starvation because they can't see food. Sure way is all in all out practice and vaccination