For a variety of reasons, including potential virus transmission, it’s a bad idea to touch your face too often. If you need a little “help” to break this habit, then you might consider the STOP Face Touching Device by DesignMaker.
The system takes the form of a very sci-fi-looking helmet, which monitors the area around the user’s face with four IR sensors. An Arduino Nano is used for control of the device, and when you do touch your face, it responds by smacking your forehead with a motor/spring device. It also increases the number of touches on an OLED display.
Between a slight amount of pain and the public shaming, perhaps your behavior will be modified. Alternatively, you can just check out the build/demo below for a bit of a laugh and maybe some inspiration!