Benzocaine is a topical local anesthetic commonly used to relieve pain and irritation on the skin or mucous membranes. It works by temporarily blocking nerve signals in the area where it is applied, helping to reduce discomfort from minor skin irritations, sore throat, mouth ulcers, toothache, insect bites, and sunburn. Benzocaine is widely available in forms such as gels, creams, lozenges, sprays, and ointments for quick and localized pain relief.