The first thing to do at home for mild carbon monoxide poisoning is to get out of the carbon monoxide environment and administer oxygen as soon as possible if possible. Mild carbon monoxide poisoning can be manifested as dizziness, headache, panic and other symptoms. The first thing to do is to get out of the higher concentration of carbon monoxide environment, if the poisoning at home to open the windows in time, put the patient in a ventilated place. If possible, the patient can be given oxygen or hyperbaric oxygen therapy as soon as possible. Most mild cases can be effectively relieved when removed from the environment. There is no need for special treatment, and generally there will be no sequelae. If the poisoning is severe, consult a doctor for regular and adequate hyperbaric oxygen and other treatments. Closely monitor changes in condition and be alert to the emergence of delayed encephalopathy.