The second step is natural friction. As long as the foreskin is turned up and the boudoir is completely exposed, the boudoir will naturally become insensitive. It's just a long process. If you want to quickly reduce the sensitivity of boudoir, you must increase friction. For example, try to sleep naked, try not to wear underwear, and wear coarse pants, such as jeans. I may not even dare to walk at first. I think my boudoir itches. After a long time, I gradually got used to it, even forgot to itch, and then I stopped itching. Then the boudoir was almost insensitive.
The third step is artificial friction. You can try to use some props to deliberately rub the lower boudoir head and the crown makeup slot. For example, a sponge for washing pots, especially one that is a bit like a sponge and a bit rough. Such as rubbing with a rough towel. You can try a toothbrush or brush. You can also rub it with dry hands. Friction can be light makeup or heavy makeup. Where it is sensitive, it rubs. Be patient when rubbing. Thank you.