It is because clapping your hands to stimulate the emission area will activate diseases that have been deposited for many years and reflect them on the surface of your hand. Don't worry, it's a good sign. Keep shooting! When the blue veins recede, it will prove that the disease in this launch area will be cured. Come on!

It means I've been clapping my hands for 8 days, with bruises and cracks.

It's okay.

Hold on. Come on!