1. Soak the plaster in water before removing it, so that there is not much glue left when removing it.

2. When removing the plaster, gently and slowly remove the plaster.

3. After that, use a hot towel to hot compress the place where the plaster is removed for a while.

4. After hot compress, wipe it back and forth with a hot towel dipped in hot water to remove residual glue.