It is not clear exactly how you would develop dark marks on your nose by rubbing upwards - why would you be rubbing your nose in this way, particularly to the extent that the skin on your nose becomes dark? The most important thing to do is obviously to stop this rubbing, whether it is a habitual quirk of yours or has something to do with an activity that you perform regularly. Constant friction is known to cause darkening of skin, and while some measures may help lighten the skin, they will be practically useless unless the friction itself is gotten rid of...