One, if there is no bleeding

Broken skin

Just use Yunnan white spray.

deal with

Two. Boil an egg before going to bed at night.

fruit peel

Roll in the wound

Until it's not hot

Three. Repeat the above process.

Three to five days is enough.

Fourth, if you carry a load or do something with your knees touching the ground or hard objects.

According to your own weight

Physical ability

Don't go too far

Losing weight is something you have to do every day.

Stick to living.