Only treat if you see the yellow discharge from her nares or swelling. Treat for about five days 2x day. But don't treat if there are no symptoms. She may have only had clogged nares from food and other stuff getting into them.
If the symptoms get worse, face swells, if the hen get lethargic she will need a stronger antibiotic. Tylosin, usually in powder form mixed into the drinking water. That also should be available over the counter in pet stores, feed stores and online.
If the symptoms get worse, face swells, if the hen get lethargic she will need a stronger antibiotic. Tylosin, usually in powder form mixed into the drinking water. That also should be available over the counter in pet stores, feed stores and online.