Eating cold medicine after drinking alcohol needs to depend on what kind of cold medicine and cold medicine specific active ingredients to eat, serious certain cold medicine can cause adverse consequences, for example, after drinking alcohol can not eat cephalosporins, such as cefixime, cefmetazole, etc., can produce serious disulfiram-like reactions. In mild cases, rash, itchy skin, redness around the body, etc., and in severe cases, tachycardia, arrhythmia, chest tightness, shortness of breath, and in more serious cases, dizziness, headache, and transient loss of consciousness accompanied by significant anaphylactic shock, with very serious effects if not treated in time. The cold medicine that can be taken after drinking alcohol is certain traditional Chinese medicine, such as Banlangen, Pudilan, Shuanghuanglian, Da Ye Qing, etc. There will be no very obvious drug allergic reactions and adverse consequences, but you need to drink more water to promote the excretion and metabolism of alcohol in the body. If the drugs taken are levofloxacin, roxithromycin, azithromycin, ribavirin, ganciclovir, etc., it is necessary to pay close and strict attention to clinical symptoms, and if there is a certain allergic reaction or slight discomfort it is necessary to go to the hospital for consultation.