Contact dermatitis can also cause loss of pigmentation in the nose. (professorshouse.com)
It destroyed some fragile coral, such as elk horn and seafans, especially near the water surface, and caused temporary loss of pigmentation in hard coral, but it scoured out green algae and cleaned out sand. (ambergrisCaye.com)
The nose is usually involved and it may get discolored (caused by loss of pigmentation) and your dog will have a persistent and severe itch, not only in the nose, but in all the affected areas of their skin. (dog-health-guide.org)