I think my dogs nose is burn.?

Do you live somewhere where there is snow right now? If so than this is normal. Just like human's lips, dog's noses can get dry and chapped from the snow and cold. It starts to look like that. Dog's noses also get lighter in the winter and are darker in the summer. My German Shepherd's nose is jet black in the summer and a darker pink in the winter:) You can put regular Vaseline on his nose to help it heal up and not hurt. I do this with my Shepherd.