Better hope it’s not Alcoholic Neuropathy, the death of nerves in extremities due to alcohol use. Chronic alcohol use can make the damage permanent and the sensations will never go away.

Alcohol is a vasodilator, so your veins get big when you drink, and inflammation occurs.

Inflammation is itchy.

If it is a pretty strong localized itch every time you drink a bunch of beer though, it might be good to get that checked out. There’s a thousand other intersecting conditions that alcohol consumption could be interacting with(or not be, so talk to someone with an MD), but that is not a common, acute or severe enough condition to get an undeniable answer, or probably even a close approximation, here.

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