White Crust On Puppy Nose. What is dog nose hyperkeratosis? Sometimes, keratin can grow too .                           What is dog nose hyperkeratosis? Dog noses are usually cold and wet, so when they are suddenly warm and. After one application of your cream, the . Dog nose (nasal) hyperkeratosis is a condition caused by an overgrowth of skin cells (keratin) on the surface of a dog's nose. 
             You may notice the skin on .
     
		
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