When headache occurs after drinking alcohol, relying on fruits cannot achieve the purpose of relief, and the symptoms can usually be relieved by proper rest and hydration. Alcohol contains ethanol and other substances, after drinking ethanol metabolites will stimulate the cerebral blood vessels as well as neural tissue, inducing cerebral arterial spasm, thus appearing headache phenomenon. When you have a headache after drinking alcohol, eating fruits in moderation can replenish the micronutrients needed by the body, but relying on fruits alone can’t achieve the purpose of relief or treatment. When headache occurs after drinking alcohol, it can be relieved by resting properly and relaxing the brain. Some people can also drink a moderate amount of water to dilute the concentration of alcohol in the body, so as to achieve the purpose of headache relief. Alcohol contains ethanol and other harmful substances, and it is recommended that excessive drinking should be avoided in daily life.