If u have a line on your nose does it mean that u have allergies?

Allergic nasal creas. This is the transverse nasal crease across the lower third of the nose where the soft cartilage meets the rigid bony bridge. This a frequent finding in allergic patients that is the result of the continual rubbing and pushing of the tip of the nose to relieve itching.
Nasal Line. If the "allergic salute" (running your palm up your nose bc it runs all the time) is what is happening, some people can develop a line across the nose. Could be allergies. Get it evaluated.