The “warm nose myth” has many pet owners feeling that their pet has a fever (or otherwise sick) if the nose is warm and dry.
A dog’s (or cat’s) nose may be very wet and cool one moment then be warmer and not-so-moist the next. All over the course of a day. All perfectly normal. Changes in texture (crusty, flaky) and color (loss of pigmentation) of a pet’s nose should be looked at by your veterinarian. A prolonged dry, cracked nose, particularly with the loss of pigmentation, scabs or open sores should be examined by your veterinarian sooner rather than later. An ill animal will often have a warm, dry nose in addition to other symptoms, such as lethargy, decreased or absent appetite, vomiting, diarrhea and so on. In the absence of other physical signs, there are a host of dermatological (skin) problems that can be seen in this area, such as Pemphigus Foliaceus.