After mercury poisoning, rescue treatment should be carried out immediately, specific rescue measures are as follows: 1. immediately take the patient out of the poisoned environment and call for help from the 120 emergency center. 2. in the early stage of oral poisoning, gastric lavage with 2% sodium bicarbonate solution should be given, note that the use of saline gastric lavage is prohibited, and gastric lavage for more than 1 hour of poisoning should be done with caution to avoid gastric perforation. 3. 4 egg whites should be given orally, plus 300 ml of buttermilk or 20% activated carbon solution. 4. Or 20% activated charcoal solution. 4, without diarrhea, can be given 50% of magnesium sulfate 60ml to induce diarrhea. 5, patients with pharyngeal edema should do tracheotomy as soon as possible to avoid asphyxiation. 6, after the condition is stable, immediately after the treatment of mercury expulsion.