Okay. Zheer root, also known as "Houttuynia cordata", has dozens of medicinal effects, such as improving immunity, antibacterial, virus-fighting, diuretic, radiation protection, anti-tumor, and anti-inflammatory.

Method:

1. Take good care of the lotus root and the root of the ear.

2. From the folded ear roots, first pick out 8 or 9 which are longer and tougher (older), and then divide the rest into small handfuls like the one on the right in the picture, and straighten them out.

3. Fold the small handful like this, about 2-3 times.

4. Use a long folded ear root to tie it up, and then use another tie to reinforce it.

5. It is best to ask the seller to break open the pork bones and wash them well.

6. Put cold water in the casserole and add the pork bones.

7. Bring to a boil over high heat and simmer for 3 hours. The soup will turn white and the bone marrow oil will come out. Add lotus root pieces.

8. After boiling over medium heat, simmer for half an hour, then add the bundled folded ear roots.

9. After continuing to boil over medium heat, simmer for about 40 minutes.