Meaning of "raw"

[All Potted Out]

Dear Teachers,

What does "raw" mean when it's used to describe nose? For example:

Their heads were large, noses bulbous and raw, beards tattered, or patchy, or bushy as broom.

[Jamie (K)]

If you scrape a part of your body, or rub it until it becomes red and hurts, then we say that it's raw. This means that their noses had been rubbed until they were red and irritated.