People who consume alcohol immediately following a tongue piercing are more likely to experience edoema, heavy bleeding, and bruising. Alcohol is a blood thinner; when taken, it causes the blood to thin and flow or pool more quickly. Pierced wounds are negatively affected by increased blood flow.
Due to the extra blood flow that can induce hazardous swelling and blood loss, the piercing may not be able to heal. This may result in infection or rejection of the piercing by the body.
Many pierce artists recommend that clients with a fresh tongue piercing refrain from drinking alcohol for two to four weeks. In addition to causing dryness, alcohol inhibits the healing process.