Alcohol must not be consumed the day after cephalosporin infusion because the active ingredients in cephalosporin will interact with ethanol in alcohol and produce a disulfiram-like reaction, which may cause itchy skin around the body in mild cases and anaphylaxis in severe cases. Therefore, if you feel dizziness and headache after drinking alcohol the day after ordering cephalosporin, you need to go to the hospital immediately. If it is a mild allergy with only clinical symptoms of headache, intravenous injection of dexamethasone, methylprednisolone and methylprednisolone can relieve the clinical symptoms of allergy after drinking alcohol. If you feel headache after drinking alcohol, accompanied by obvious clinical symptoms such as chest tightness, shortness of breath, palpitations and discomfort in the precordial area, you need rehydration treatment, and you can also apply injectable vitamin C and other line detoxification treatment, and you can also apply antidotal drugs such as naloxone hydrochloride. In case of severe illness, symptoms of anaphylaxis in addition to headache need to be given epinephrine for symptomatic treatment.