Mercury on the skin is recommended to be washed immediately with water and treated with medication and, if necessary, hospitalization. Mercury is mainly composed of mercury, which is a harmful metal. Contact dermatitis may occur when the skin encounters mercury, often manifested as erythema, pimples, papules, blisters, etc., accompanied by itching and stinging. At this time you need to immediately rinse with water, can be used under the guidance of the doctor topical glucocorticoid cream such as hydrocortisone ointment, can play a role in anti-inflammatory, anti-allergy, etc., serious oral loratadine and other drugs treatment. Mercury is easily evaporated, if inhaled into the body, may cause poisoning symptoms such as dizziness, nausea, diarrhea, fever, etc., need to go to the hospital immediately. If symptoms such as dizziness, nausea and vomiting occur, it may be a sign of poisoning and prompt medical treatment is recommended.