Cephalosporin is a general term for cephalosporin antibacterial drugs, eat a cephalosporin accidentally drink some beer need to be closely observed, once the symptoms of discomfort, you need to take medication in a timely manner. Patients taking cephalosporin antibacterial drugs, need to avoid eating alcohol-containing food three days before or seven days after the drug, so as not to produce disulfiram-like reaction between drugs and alcohol. Mild patients may experience symptoms such as facial flushing, dizziness, nausea, chest tightness, etc. Severe symptoms may include tachycardia, drop in blood pressure, respiratory distress, etc., and even death. If patients taking cephalosporins accidentally drink some beer, need to immediately stop using alcohol products, and close observation, mild cases of patients can generally be relieved on their own, without excessive worry. Some patients with severe symptoms need to actively take medication, need to comply with medical advice with dexamethasone and other glucocorticoid drugs, or naloxone, as well as water-soluble vitamins and other drugs. It is recommended to avoid drinking alcohol before and after taking cephalosporins.