It is recommended to avoid alcohol for a week after taking a cephalosporin. Cephalosporin drug and alcohol caused by the reaction for disulfiram reaction. Due to the accumulation of acetaldehyde in the body, it can cause dilation of small arteries, small veins, capillaries, increased vascular permeability, congestion and edema, and in severe cases, decreased blood pressure, shock, and even death. Patients may experience generalized skin flushing, fluctuating headache, laryngeal congestion and edema, dyspnea, nausea and vomiting, abdominal pain, palpitations, chest tightness and chest pain. Due to the different metabolism speed and ability of alcohol and drugs in each person, after eating cephalosporin, there is usually a residue of drug components in the body, at least one week before you can drink, to ensure that the body of the cephalosporin drug metabolism is completed, to avoid the occurrence of disulfiram reaction. If you drink alcohol after eating cephalosporin, it is recommended to consult a doctor in a timely manner, under the guidance of a professional physician for treatment, not blindly deal with their own, resulting in adverse consequences.