How to clear the one on the left of the health code?

There are different forms of health code software in different regions. According to your question, you can try to find the setting button in the health code page, try to hide the photos in the health code, or change them to your favorite patterns.

In some areas, the health code picture is a common two-dimensional code with color, and the green two-dimensional code indicates that the path does not pass through the epidemic risk area. If the health code appears red, it may pass through or stay in the epidemic risk area, and many places can't go in and out normally, so some measures need to be taken, such as nucleic acid detection, to restore the health code.