What is a common cause of a transverse nasal crease?

A transverse nasal crease, often referred to as an "allergic salute" or "nasal crease," is commonly associated with repetitive behaviors related to allergies. When an individual suffers from allergic rhinitis, they tend to wipe or push their nose upward frequently to relieve itchiness or discomfort. This repeated action creates a line or crease across the bridge of the nose due to the chronic mechanical stress on the skin.

In the context of allergic rhinitis, the inflammation and nasal congestion lead to itchiness, prompting the individual to utilize their hand to alleviate these symptoms. Over time, this results in the characteristic transverse crease, indicative of the long-term effects of the condition on the skin.

Understanding this relationship emphasizes the importance of treating underlying allergies to prevent the development of such physical manifestations. In contrast, while frequent nose wiping and using nasal decongestants may also have effects on nasal appearance, it is the underlying allergic condition that is the primary reason for the formation of a transverse nasal crease. Sinus pressure may cause discomfort but does not directly lead to this specific skin change.