OTC topical anesthetics are available, but they are typically less potent than prescription local anesthetics. They are suitable for minor discomfort relief, like sunburn or insect bites, but may not provide sufficient pain relief for medical procedures. It's essential to consult with a healthcare provider or dentist to determine the most appropriate local anesthetic for your specific needs. Using the wrong type of anesthetic or using it incorrectly can lead to inadequate pain relief or potential complications.