But if you get nosebleeds a lot -- there may be a reason you can pinpoint: 1  Dry climates or dry, heated air that dries out the inside of your nose. 2  Picking your nose or rubbing it too hard. 3  A cold.  Repeated nose- 1 blowing. An injury to your nose.  Allergies or allergy medicines that can dry out your 1  nose. Other medications you’re taking.