What is the definition or description of: ulcerations in nose?

Mucosal breakdown: Ulcerations in the nose are areas of superficial (partial) breakdown of the protective mucosal membrane. This creates shallow regions of inflammation, redness, and crusting in the nose.

Sores: Open sores inside the nasal cavities. They may be on the septum or the turbinates. There are multiple causes including dryness, digital trauma, infection, or tumor growth.