What happened to the dog’s dry, cracked and crusty nose

A dog’s dry, cracked and crusty nose can be caused by distemper or microscopic, as infectious diseases can cause fever in dogs and cause dry, cracked and crusty noses. Infectious diseases are highly contagious and have a rapid course, and dogs can easily die and need to be treated immediately. However, acute dehydration in a dog exposed to the sun can also cause a dry, cracked and crusty nose.