Why do your pores open after drinking alcohol?

When you consume alcohol, it acts as a vasodilator, meaning it expands blood vessels and increases blood flow to the skin. This can cause your pores to appear larger or "open" due to the increased circulation and temporary swelling of the skin. Additionally, alcohol can dehydrate the skin, which may lead to an overproduction of oil as your body attempts to compensate, further affecting the appearance of your pores.