My arch is not ticklish, how can it itch?

First of all, some people are not sensitive, so they are not afraid of itching.

Sensitizing the soles of the feet can be used as a way of thinking. For example, use a foot plaster or go to a pedicure shop or a beauty shop to do a care exfoliation; Soak your feet with water slightly higher than the bath temperature until your feet are slightly pink, which increases your blood pleasure; Apply essential oil and olive oil to the soles of your feet; Wearing stockings or thin socks will generate static electricity and increase itching. ...

There is also blindfolding, which reduces the body's conditioned reflex and self-defense ability.

Physiologically speaking, the human body will be relatively sensitive after proper urination or full exercise.

Between husband and wife, after the climax of happiness, the woman will be more sensitive.

I hope I can help you.