I would add that you can also use argan oil from what I've read, but I haven't tried it. I would be a little cautious about using Aquaphor, since it contains a lanolin alcohol, which is derived from sheep's wool, so there is a small chance of allergy. If your dog's nose is severely dry to the point of cracking, I would apply the coconut oil or whatever you choose( after wiping the nose with a wet warm wash cloth to remove loose crusty material ) 2-4 times a day till the nose is back to normal, then cut back to once daily maintenance.