Usually, if you take or static cephalosporin, you should drink alcohol only after 7 days, cephalosporin belongs to a typical representative of beta-lactam drugs, all beta-lactam drugs, such as cephalosporin, penicillin or carbapenems, should be applied after 7 days before drinking alcohol. Otherwise alcohol will have a chemical effect of a disulfiram-like reaction with the active chemical components in them, and in mild cases, a peripheral rash, rashes, red maculopapular rashes, allergic urticarial skin, and itching will appear. In severe cases, there will be obvious tachycardia, arrhythmia, palpitations, chest tightness, shortness of breath, and even more serious cases will have difficulty in breathing, dizziness, headache, transient loss of consciousness, which will lead to anaphylactic shock. Therefore, you must drink alcohol after 7 days after applying cephalosporin, and you need to go to the hospital immediately once you experience uncomfortable symptoms after drinking alcohol.