A welt on my nose has a hard core that protrudes from the swollen area and when brushed against or washed or bumped with my glasses, feels like a loose scab.   The swollen part, less than the circumference of a pencil, looks to be full of liquid, but I have not punctured or squeezed it.  I am above 60y/o, and recognize it not to be a regular skin eruption, as a zit, black or white head.
Hi. Thanks for your query. Noted the history and understood your concerns. Welt on the nose as you have explained that has fluid into it and is not like a zit, black or white head indicates that this is a cyst that has developed over time. The best way is as follows