What is the reason for a headache after drinking alcohol?

Patient's question:

I'm usually in very good health with no problems, but I have a very peculiar condition that has been with me for about 34 years. It's that whenever I drink beer, I get a severe headache on one side, and sometimes it's so bad that I can't even finish my drink. I'd like to consult a bit about what could be causing this one-sided headache after drinking beer?

Doctor's answer:

The reason for headaches after drinking beer again is mainly related to the increased nervous excitability after consuming beer, which may also cause blood vessels to constrict or expand, leading to cerebral congestion. It can also result in a decrease in blood pressure, thus causing headaches to reappear. However, this varies from person to person. Most people will not experience headaches again after drinking beer, but it may be influenced by underlying cerebrovascular diseases. It is recommended to undergo a cerebral angiography or a brain MRI for a thorough examination to determine the cause. Rest well.

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