There is no special antidote for acetaldehyde poisoning. Acetaldehyde is mainly poisoned by inhalation, oral intake and skin mucous membrane contact. If the poisoning is caused by inhalation, leave the poisoning site quickly, keep the respiratory tract open and go to the emergency department of the hospital. If the poisoning is caused by skin contact, take off the clothes stained with acetaldehyde, rinse the contaminated skin thoroughly with soapy water and water, lift the eyelids for eye contact and rinse them repeatedly with flowing water or saline, drink water immediately and repeatedly to induce vomiting if the patient is poisoned by oral acetaldehyde, and then go to the hospital for gastric lavage. If the patient stops breathing, artificial respiration should be done quickly, and cardiopulmonary resuscitation should be done immediately if the patient is in respiratory and cardiac arrest, and 120 emergency number should be called at the same time, and 120 emergency number should be called for other serious conditions, so that emergency personnel can pick up the patient and take him to the hospital. The doctor will give the patient oxygen, cardiac monitoring, monitoring the patient’s blood pressure, respiration, heart rate, oxygen saturation and other vital signs, gastric lavage, poor breathing, respiratory failure to tracheal intubation on the ventilator, but also to tie the needle infusion, the application of dexamethasone and other drug therapy.