Some breeds are prone to dry cracked noses such as eng bulldogs and its considered normal while in other breeds it can be the sign of an issue..in my schnauzer it was a sign of lupus. Both had vasoline rubbed in to alleviate/prevent the issue.
Thanks for your replies! I have a feeling it could have to do with some intolerance but I must look into it more. Oil helps but I want to get to the root of the issue (if there is one).