i also get an itch about 10 minutes after i shower.
it is because i heat up my body, and my thermostat does not allow cooling.
it appears as if the itch is inside of my arms.
this goes away as i slowly cool down again.
it does not itch straight away,
so i had trouble working out what the itch was from.
and it does not happen every shower,....
only if i overheat.
but this is me ....
you may have a different reason.
When you're stressed, You eat Ice cream, Cake, Chocolate & Sweets. Why? Because stressed spelled backwards is DESSERTS.