The first aid for cerebral infarction includes thrombolytic drugs such as alteplase, anti-platelet aggregation drugs such as aspirin, and anticoagulant drugs such as heparin. 1. Thrombolytic drugs: When acute cerebral infarction attacks, the time to seek medical attention is critical. The currently recognized time window for thrombolytic therapy is within 4.5 hours of onset. During this period, the risk of thrombolysis is assessed, and if there are no obvious contraindications, thrombolysis is performed early. It can be done with alteplase, etc. 2. Antiplatelet drugs: Oral aspirin within 48 hours after the onset of acute cerebral infarction can significantly reduce the rate of death or residual disease in patients and reduce recurrence. For patients with cerebral infarction who do not meet the indications for thrombolysis and have no contraindications, oral aspirin should be given within 48 hours after the onset of the disease, and for those who are treated with thrombolytic therapy, antiplatelet aggregating drugs such as aspirin should be used 24 hours after thrombolysis. For patients who cannot tolerate aspirin or have aspirin resistance, other antiplatelet aggregating drugs such as clopidogrel can be considered. 3. Anticoagulant drugs: Anticoagulant therapy in the acute phase has been controversial. At present, it is believed that anticoagulation therapy cannot reduce the rate of death or disability of patients with cerebral infarction, but it can reduce the recurrence rate of cerebral infarction and the incidence of pulmonary embolism and deep vein thrombosis. Therefore, anticoagulation should be selectively administered according to the indications, and commonly used drugs include ordinary heparin, warfarin, and low molecular heparin. Please use the medication under the guidance of your physician and seek immediate medical attention if you feel unwell.