Shock your way to mosquito bite itch relief

I'm going to Japan for a month this summer. I know two things for certain: it will be mushi atsui (muggy hot) and I will get bitten by ka (mosquitoes). My favorite way to relive the itch of a mosquito bite is with this little device, which delivers a tiny spark of static electricity when you press the trigger. About 10 presses of the trigger will stop the itching for hours. Everyone in my family uses it. Thay cost about $10 on Amazon. It doesn't need batteries. It has a piezoelectric crystal in it. I've had one for years and it still works.