The Out of Reach Itch

At my age when you scratch an itch,
the itch moves to another spot.
It's almost instantaneous.
The itching never stops.
The itch just switches where it itches,
moves around from place to place
while you scratch away in a merry chase.
Nostril, forehead, elbow, knee,
left ear, right ear, then the leap,
the coup de grâce, the itch retreats
back between the shoulder blades.
Stretch or twist, the itch persists.
It's out of reach! Beyond belief!
But just a minute, I'm not beaten,
I may still win this after all.
Sidle up, rub back and forth,
up and down for all you’re worth,
against the corner of the wall
or doorframe, either works.
Ahh, finally relief!
Rinse and repeat.
(Of course, none of this would matter
if I only had a nice back-scratcher.)