Avoid direct contact with the affected area and keep it clean. Using tweezers clips can prevent nurses' hands from touching the affected area or wound, and reduce the risk of direct hand contact and the possibility of cross infection. It also avoids the contact between hands and cotton balls and reduces the risk of infection. Therefore, it is necessary to clamp the cotton ball with tweezers in the nursing process to avoid direct contact with the affected area and keep the affected area clean. Attention should be paid to in the nursing process:

1. During the operation, pay attention to monitoring the patient's vital signs, and stop the operation if there is any abnormality.

2, follow the principles of human mechanics, pay attention to save time and effort.

3. Massage moderately to avoid skin damage caused by excessive force.