Lidocaine is a common local anesthetic. It’s available as a cream, ointment, patch, or spray. When it’s used on the skin, it numbs the area and helps to relieve pain. In some cases, lidocaine can also be used to relieve a headache or a toothache.

Recently, lidocaine has been gaining popularity as a cocktail ingredient. A lidocaine cocktail is simply a drink that contains lidocaine. Some people drink lidocaine cocktails to relieve pain, while others drink them for the buzz …