Headache after drinking can eat a variety of fruits, such as watermelon, bananas, apples, grapes, oranges and other fruits, but fruits can’t treat headache symptoms fundamentally. The symptoms of headache after drinking are caused by the dilatation effect of cerebral blood vessels and relative cerebral blood supply insufficiency secondary to ethanol poisoning, and patients can relieve the symptoms with the help of non-steroidal anti-inflammatory drugs, supplemental water, etc., as follows. 1. Fruits that can be eaten after drinking: Eating watermelon after drinking can promote the excretion of alcohol, you can also eat grapes, apples and oranges rich in vitamin C to promote the metabolism of alcohol, in addition, you can also eat potassium-rich bananas to supplement potassium ions, thus relieving the symptoms of headache. 2. The cause of headache after drinking and its treatment program: headache after drinking is mostly caused by ethanol poisoning, cerebral vasodilatation secondary to the relative cerebral blood supply insufficiency, so the patient can take non-steroidal anti-inflammatory drugs indomethacin, ibuprofen to alleviate the symptoms, but also to supplement the water, to promote metabolism, for the treatment of the cause of the headache. Moderate alcohol consumption is recommended for men to reduce the likelihood of adverse vascular events such as atherosclerosis and liver disease.