I used to have dandruff before, but I don't considered it as an allergy, thou.
Thou there this one problem that come and goes without warning, but not often, where there are times when my nose get really itchy, not the itchy-that-you-wanna-scratch-type, but when you rub it furiously, you tend to smell something smelly.
I usually try to wash my nose with some toothpaste to ease the itchiness.