Numbness in your nose may be a condition called Raynaud's phenomenon. This is a condition where blood flow to your fingers, toes, ears or nose is restricted or interrupted, according to Healthline.
Emotional stress, cold temperatures or working with hand tools that emit vibrations can trigger episodes of Raynaud's phenomenon, reports Healthline. Women are more likely to develop this condition, with young adults between the ages of 15 and 25 at increased risk, reports National Institute of Arthritis and Musculoskeletal and Skin Diseases. Those who live in colder regions are more likely to be affected by Raynaud's phenomenon than those in warmer climates.