There was a member who posted about a feather that was poking her ducks eye an irritating it she had to remove it of course it wasn’t skin but watch for irritation with it poking into her eye.
Is she breeding age it could be an injury from a drake they can head eye lids skin around eyes. Being your in AU can you get Terramycin eye ointment? Might be infection or sinus just hard to know since we can only see pics @casportpony