If brain infarction patients have swollen face after medication, there are usually several reasons as follows: First, if there is previous cardiac insufficiency or renal insufficiency, there will be secondary sodium and water retention after medication, so it will lead to clinical symptoms and manifestations of swollen face. Secondly, if patients with cerebral infarction use drugs to improve microcirculation, local capillary dilation of the face will occur, and face swelling will also occur after capillary dilation. Thirdly, if it leads to obvious facial swelling after using drugs, it is usually related to the aggravation of cerebral infarction or the aggravation of the primary disease, which is not under obvious control. So at this time, the intake of sodium salt should be appropriately reduced, the infusion of medicine should be reduced, and the dose and variety of medicine can also be adjusted according to the situation.