First aid for depressive episodes: the main thing is that there must be a bystander’s supervision during the episode, always observe the patient’s behavior, prevent the patient from light thoughts, and avoid the patient’s contact with dangerous objects; at the same time, antidepressant medication is needed to reduce the symptoms of depression, but these drugs must be applied under the guidance of a doctor; secondly, the patient must be given psychotherapy, which can help the patient deal with emotions and change the way of thinking, and find out how to cope with the situation, and a professionally trained psychotherapist must be available for treatment.