Mrs. Columbo,
Well, an answer that's not honest, is not worth much, most of the time. Besides, there are a heck of a lot of skin blemishes that itch, that aren't melanoma, so that's not a sure sign of anything. I certainly hope that it's something else, and the odds are in favor of it being something else, too.
It never rains here anymore, anyway, but if you should ever need to wipe your feet, rest assured that I can whip it off the wall in a flash.
By the way, Jill has had to deal with melanoma, in the past year or two, as I recall. You may have been thinking of her.
Luve,
Galahad