While a doctor may prescribe a medication to treat a burning tongue and lips, some ways to ease symptoms at home include avoiding spicy and hot foods and products with mint or cinnamon, states Mayo Clinic. Another way to alleviate symptoms is to drink plenty of noncarbonated fluids.
It is important to avoid drinking alcohol because it irritates the lining of the mouth, according to Mayo Clinic. Avoiding foods with high acid levels, including orange and tomato juice, soft drinks and coffee, also helps improve symptoms. For brushing the teeth, use a mild or flavor-free toothpaste designed for sensitive teeth. It also helps to avoid excessive stress.