1. First, prepare a basin of clean water and put the doll into the basin.

2. Then pour a proper amount of laundry detergent into the basin.

3. It is enough for the doll to soak in the laundry detergent for 20 minutes.

4. Next, pour a proper amount of salt into the basin.

Next, you can brush the surface of the doll with a soft toothbrush.

6. Finally, take a look at the doll and clean it, as shown in the figure.