Alcohol can lead
to stomach irritation. This isn't necessarily an allergic reaction, but
it's a direct reaction to a toxin, of sorts. Alcohol, when it gets into
the stomach, actually causes an increase in secretion of stomach acid…that
increased secretion of stomach acid can cause tenderness and belly pain.
The belly pain can be treated essentially by trying to neutralize the acid; you
would use Tums, Rolaids or products like that. But over time, it can have
a disastrous effect, if you continue drinking.
