Drinking alcohol is not recommended when a headache occurs. If the headache is caused by elevated blood pressure, the blood pressure will be higher after drinking alcohol and the headache will be aggravated. In addition, the common causes of headache are migraine, muscle tension headache, and neurological headache. After drinking alcohol, it will stimulate the cerebral blood vessels and cause further expansion of the cerebral blood vessels, which will stimulate the brain nerves, so it will cause the existing pain to be even worse. When you have a headache, you need to pay more attention to rest. If the headache is severe, you can take symptomatic oral pain medication to relieve the headache, but you need to exclude serious diseases such as intracranial hemorrhage before you can take it orally. In addition, you should quit smoking and limit alcohol, prevent and control the triggers that cause headache, eat a light diet, do not eat spicy and stimulating food to avoid aggravating the headache, pay more attention to rest, exercise more, enhance physical fitness, and reduce the occurrence of headache.