Individuals who consume alcohol directly after getting a tongue piercing increase their chance of experiencing swelling, excessive bleeding or bruising. Alcohol is a blood thinner; when consumed, it thins the blood and causes it to flow or pool faster. A piercing is a type of wound that is adversely affected by increased blood flow.
The piercing may be not able to heal,due to additional blood flow that can cause dangerous swelling and blood loss. This may result in an infection or the body rejecting the piercing.
Though recommendations vary among piercing artists, many recommend that individuals with a new tongue piercing avoid alcohol for two to four weeks. Alcohol also causes dryness, which hinders the healing process.