1. Put the brave man and the brave man on your hands and drop a proper amount of detergent.

2, soft brush with the right amount of water, gently brush in the palm of your hand for a few minutes.

3. Put the scrubbed brave and brave into clean water to wash away the excess foam.

4. Put it on a clean soft cloth (or paper towel) to absorb the excess water, and the cockroach's eyes and mouth will be clean.