My rooster always breathes heavily when I pick him up, and I noticed today he had slightly crusty eyes. My flock has sneezed for 6 months, and have been fine. I cleaned his eyes out to see if it would return. I thought his nose was runny too, but it was just water. One other hen has a TINY amount of crust in her eye. Should I treat, or let them be? Also, if I treat, is there a with drawl period, will it hurt my family if we eat these eggs? Thank you!