I have a White Plymouth Rock Hen that is about 8 mos old. Recently, I replaced my roosters with Rhode Island Red pullets. After that, the Plymouth developed what sounds like a very bad cold. At first, she was wheezing quite a bit, but now her breathing passages seem to have cleared and she just sneezes every once in a while (and her "nose" is still runny, just not as bad as before). The little ones are sneezing too, but haven't been as sick as the Plymouth. I suspect they brought this whatever it is with them. Anyway, she had stopped laying, but now that symptoms are decreasing, she's starting laying once every two days. The eggs are slightly smaller than what is usual for her, but not terribly so. The shells are also lighter in color than is usual for her also. Should I dispose of the eggs until her runny nose and sneeze completely clears up? Oh, and I treated them all with ACV in the water, and sprayed down the coop with an antibacterial/antiviral mixture I made with therapeutic grade essential oils, based on information from www.essentialbird.com. I also fed them yogurt laced with thyme. (and I'll be doing that again today). Their coop is built up off the ground and the floor is basically a giant sand box. I've started using the spray as I scoop the coop each morning, to minimize the amount of dust I stir up. I also spray the roost bar, nest box and walls, so the essential oils can be released into the air and in turn, be inhaled by the birds. Is there anything else I can do for these birds?