A. There are many reasons a dog can start to lose pigment in and around the nose and the change in color of hairs may be due to damage to the hair follicles. Bacterial, fungal and parasitic causes should all be ruled out in order to guide appropriate treatment as these may continue to progress if not treated specifically. Autoimmune conditions and trauma can also result in similar signs. Vitamin and fatty acid supplements can help to improve the integrity of the skin and may help to speed recovery
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