https://techcrunch.com/2020/03/09/dont-immutouch/

In the age of coronavirus, we all have to resist the urge to touch our faces. It’s how the virus can travel from doorknobs or other objects to your mucus membranes and get you sick. Luckily, a startup called Slightly Robot had already developed a wristband to stop another type of harmful touching — trichotillomania, a disorder that compels people to pull out their hair.

So over the last week, Slightly Robot redesigned their wearable as the Immutouch, a wristband that vibrates if you touch your face. Its accelerometer senses your hand movement 10 times per second. Based on calibrations the Immutouch takes when you set it up, it then buzzes when you touch or come close to touching your eyes, nose, or mouth. A companion app helps you track your progress as you try to keep your dirty mitts down.