Carbon monoxide poisoning is the main consideration in coal burning poisoning. Depending on the severity of the poisoning, the rescue measures are also different. The main measures are to move to a well-ventilated place, to give high concentrations of oxygen, and to prevent cerebral edema. 1. Mild patients: patients with headache, dizziness, generalized weakness, etc., immediately open the doors and windows, move the patient to a well-ventilated place with fresh air. 2. Medium and severe patients: drowsiness, coma, even respiratory arrest, etc., immediately unbuttoned to keep the airway open, remove nasal and oral secretions, call 120, and cardiopulmonary resuscitation. Conditions should be immediately transferred to the hospital hyperbaric oxygen chamber to do hyperbaric oxygen therapy, oxygen can not only make the patient wake up, but also to reduce the sequelae. In addition, intravenous mannitol, furosemide can also be given to prevent or reduce cerebral edema. Carbon monoxide poisoning can cause headache, dizziness, insomnia, blurred vision, tinnitus, nausea, vomiting, generalized weakness, tachycardia, transient fainting and so on, and in serious cases, there will be lethargy, coma, or even respiratory paralysis and death. Therefore, once you find carbon monoxide poisoning, you should seek medical attention immediately to avoid delay.