Yes, alcohol does lead to excessive sweating or, in most cases, a significant increase on the regular level of sweating. This is a common situation in people with alcohol dependence, binge drinkers and people who have a low tolerance to alcohol.
Alcohol leads to vasodilatation, the expansion of blood vessels. The increased blood flow, especially near the skin surface, leads to an increase in temperature. This activates the body’s cooling mechanism; the sweat glands produce sweat to cool the body.
Secondly, sugary alcoholic beverages leads to an increase in glucose levels in the body, triggering an increase in insulin to rebalance sugar levels. The spike in insulin may lead to low blood sugar, a symptom of which is sweating.