The length of the acute phase of acute cerebral infarction varies depending on the condition. The acute phase is usually referred to as within 2 weeks of stroke onset, and after 2 weeks the recovery period of cerebral infarction is entered. In the recovery period of cerebral infarction, secondary prevention treatment of cerebral infarction should be started early and safely, and the main methods are as follows: 1. The first anti-platelet drug therapy is usually recommended to use aspirin or clopidogrel alone or small doses of aspirin combined with dipyridamole; the second anticoagulation therapy is not recommended for large atherosclerotic cerebral infarction; 3, rehabilitation therapy, during the recovery period of cerebral infarction, for patients with neurological deficits In the recovery period of cerebral infarction, patients with neurological deficits must carry out reasonable rehabilitation treatment as early as possible, and the duration of rehabilitation exercise and the intensity of rehabilitation exercise can be gradually increased according to the passage of time.