Don't think it autoimmune condition.
Looks like this dog but not as many bump/lumps(whatever you want to call them)
http://en.allexperts.com/q/Dogs-701/...-dogs-nose.htm
I'm thinking it may allergies but she didnt get them last year during spring.
Its weird cause we will be up for a bit before they start.. but its weird as they only n he top of her nose