Difficulty in breathing the next day after drinking alcohol may be caused by alcohol allergy, or it may be caused by the patient taking cephalosporins, or it may be caused by the patient himself suffering from coronary heart disease, as well as other diseases such as myocarditis. 1. Alcohol allergy: If the patient is allergic to alcohol, after drinking alcohol, the alcohol into the body may cause the patient to develop allergic symptoms. In addition to the symptoms of dyspnea, the patient may also experience allergic symptoms such as generalized red rash and itchy skin. 2. Taking cephalosporins: If patients take cephalosporins, such as cefixime tablets, cefaclor tablets, etc., after drinking alcohol, it will produce a disulfiram-like reaction, and the patient will experience symptoms such as dyspnea. In addition, patients may also experience headache, dizziness, blurred vision, vomiting and other uncomfortable symptoms. 3. Coronary heart disease: Coronary heart disease is mainly caused by the narrowing or occlusion of the coronary arteries, etc. If the patient suffers from coronary heart disease, the patient will also experience symptoms of dyspnea. In addition to dyspnea, patients will also experience angina, chest pressure and other symptoms. 4. Other: Myocarditis, hypertensive heart disease and other diseases can also lead to dyspnea after drinking alcohol. If the symptoms of dyspnea appear on the next day after drinking alcohol, the patient should consult a doctor in time and follow the doctor’s instructions.