Under normal circumstances, dogs will lick their noses to achieve a moist state. It is recommended that owners check whether their dogs have signs of colds or fever. If the dog's body is normal, owners do not need to worry. It may be due to dry weather. It’s not a serious problem; if the dog’s nose is dry and accompanied by loss of appetite, it should be a physical disease. It is recommended that the owner send the dog to the pet hospital for examination.