Hereditary nasal parakeratosis (greyhound type) is an inherited skin disease affecting dogs. Affected dogs present as puppies with dry, rough, gray to brown crusts and rarely, painful cracks on the tip of the nose. The noses of affected dogs are prone to superficial bacterial infections and often become depigmented over time. Affected dogs are otherwise healthy. Symptoms often wax and wane in severity over the dog’s life. Though manageable, this disorder requires continuous topical therapy to prevent recurrence of excessive nasal crusting.