Lip biting is very common, according to the American College of Prosthodontists, and the best way to cure it is with warm salt water and time. An individual can also apply ice to the area to reduce swelling.
The Healing Oceans Family Wellness Center advises mixing 1/2 to 3/4 teaspoon of salt with a cup of warm water to make an effective salt water rinse for the mouth. Swishing the water for about 30 seconds and then spitting it out cleanses the bite. An individual can repeat this several times a day, if needed. To use ice for the lips, one can use an over-the-counter ice pack or make his own. The individual should be sure, however, to avoid placing the ice directly on the lips. Instead, the ice should be wrapped in a towel before application.
A bitten lip heals naturally in most cases and is an accident in many instances. However, some may suffer from a chronic condition in which they cannot control lip biting. Over time, Simple Steps Dental says that this condition can lead to dry, peeling and sore lips. In order to stop this condition, an individual should be made aware of this habit, and he stops over time. Others may need to work with a dentist or a psychologist in order to stop biting.