The statement that alcohol is a class I carcinogen is true. Carcinogens are external factors that cause cancer, substances that can induce cancer under certain conditions. Clinical studies have shown that excessive alcohol consumption greatly increases the chance of many types of cancer, such as liver cancer, stomach cancer and esophageal cancer. After drinking alcohol, alcohol is absorbed in the stomach and large intestine, and part of it is broken down in the digestive tract by a specific enzyme, ethanol dehydrogenase, into acetaldehyde, a metabolite that is a carcinogen. Strictly speaking, alcohol is a carcinogenic external factor and does not directly cause cancer, but the products of the reaction have carcinogenic effects. For patients with gastritis, hepatobiliary and pancreatic system diseases, or those with family history of these diseases, early abstinence from alcohol is recommended to reduce the risk of tumor induction. After drinking a lot of alcohol, you should drink more water to increase the speed of blood circulation in the body, accelerate the metabolism of alcohol and make it discharged from the body quickly. At the same time, you can drink some honey water appropriately, as the unique fructose in honey can promote the decomposition of alcohol, which helps to solve the problem and relieve the headache, nausea and other uncomfortable symptoms caused by alcohol. If the discomfort is serious, you should go to the hospital in a timely manner and follow the doctor’s instructions to use reasonable medication.