How do you treat a sliced tongue?

To treat a sliced tongue, first rinse your mouth gently with warm salt water to clean the area and reduce the risk of infection. Apply a cold compress or ice wrapped in a cloth to the outside of your mouth to alleviate swelling and pain. Over-the-counter pain relievers can help manage discomfort. If the cut is deep, doesn't stop bleeding, or shows signs of infection, consult a healthcare professional for further evaluation.