The dry nose of Irish Red and White Setter dogs may be: 1. caused by dry weather, 2. caused by internal heat, 3. the dog has a cold and shows fever, 4. it is normal for the nose to be dry after waking up; suggestions The owner should observe the Irish Red and White Setter carefully and make sure that everything is normal physically and mentally. If there is listlessness, it should be caused by a cold or other diseases.