What Causes a Red Nose?
Jul 08, 2021
Source: Cainiu Health
Dr. Wang Bing
Introduction
If acute redness and swelling occur, it may indicate a localized skin infection—such as folliculitis—which commonly presents with localized tenderness. Rosacea can also cause localized facial erythema; over time, it may lead to an orange-peel-like texture of the nasal skin. In response to cold air exposure, cutaneous blood vessels dilate to increase local skin temperature, potentially resulting in nasal congestion and erythema.
Redness of the nose—when localized to the skin—typically arises from several possible causes. Acute redness and swelling may indicate a localized skin infection, such as folliculitis, or other acute bacterial skin infections, which often present with localized tenderness.
Secondly, allergic reactions can cause localized redness and swelling of the nasal skin, frequently accompanied by itching.
Thirdly, rosacea (also known as “rhinophyma” in advanced stages) may also lead to persistent facial, particularly nasal, erythema. Over time, it may result in an orange-peel-like texture of the nasal skin. Additionally, exposure to cold air triggers cutaneous vasodilation to maintain local skin temperature, potentially causing nasal congestion and redness.
Thus, nasal redness has many potential causes, but most commonly stems from localized skin conditions. If persistent nasal redness occurs, prompt consultation with a dermatologist is recommended.
