The black-faced doll has fewer side effects, but due to problems such as the doctor's operation, the following side effects may also occur:

1. Mild pain: The black-faced doll may have A certain degree of pain is mild and can be tolerated by most people.

2. Skin becomes hot and red: Most of the time, the skin will become hot and red after treatment, which usually subsides on its own after a few days.

3. Skin irritability: The skin may be drier after treatment than before.

4. Local swelling: There may be mild local swelling after treatment for black-faced dolls, which will gradually subside within a few days after surgery.

5. Burns: Generally do not occur. However, there are some cases where a certain degree of burns may occur.