You could put a pinch of salt into your bottle with hand sanitizer and wait for about a day till the salt is dissolved. Then when disinfecting your hands, pour

You could put a pinch of salt into your bottle with hand sanitizer and wait for about a day till the salt is dissolved. Then when disinfecting your hands, pour a little bit into any opening you see near the screen. (Never tried that out and never will. Hand sanitizer has about 30 percent water and salt water will both short-circuit and corrode circuits.)