Great News!! My hen does not have Canker. I did some more digging and found it to be a bit rare in chickens and did more digging and found this article after seeing an old post on here. Here's the article about plugged nares http://www.browneggblueegg.com/Article.html Click on "Plugged Nare (Nostril)" on the left-hand column. This is exactly what I pulled out of my hen's nose and there are no other sores in her mouth, ears, etc. so, thank heavens... no "incurable disease"