First, swishing the gel creates an ultra-thin film that protects the mouth from further irritation and contamination. Second, the negatively-charged gel binds the positively-charged sodium. This prevents the pain signal from being transmitted to the brain.
OraSoothe does not numb the mouth like topical anesthetics (benzocaine, lidocaine, etc.) Unlike these drugs, OraSoothe is not absorbed into tissues and does not alter cell physiology.