Hands in contact with mercury need to be washed promptly, and if there is a wound, the wound needs to be sterilized, stitched, and also treated with medication according to the doctor’s instructions. After the discovery of hand contact with mercury, but did not appear wound, usually not a big problem, you need to promptly use warm water to wash the parts of the contact with mercury, minimize the contact area of mercury and skin surface, and also to let the hand in a ventilated place to dry. If there is a wound on the hand before contacting mercury, it may allow mercury to enter the human body from the wound, resulting in mercury poisoning, you need to go to the hospital in a timely manner to use saline, iodine povidone on the wound to clean and disinfect the wound, and then suture the wound. You can use glycerine lotion, fluoride acetate ointment and other drugs for wound treatment under the guidance of the doctor, and you need to pay attention to the hygiene of the hand after suturing to avoid infection.