Dry and cracked scaly-like noses on dogs can be caused by many diseases. First we need to rule out canine distemper, and then look for other causes. Under normal circumstances, a dog's nose is dry except when sleeping, and is moist at other times. If the dog's nose is dry when not sleeping, it means that there is something wrong with the dog's body.

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There is no specific drug for canine distemper virus. Once infected, the mortality rate is very high. We need to vaccinate dogs during their childhood to prevent this disease.