“…The former leads to addiction, dependence, and tolerance while the latter causes a ceiling effect. 10,11 To overcome the issue, topical anesthetics are widely used to numb the skin and to relive pain in medical and surgical procedures in anesthesia, ophthalmology, otorhinolaryngology, dentistry, urology, and aesthetic surgery. Among topical anesthetics, lidocaine, tetracaine, benzocaine, and prilocaine in a cream, ointment, or gel are commonly available as prescription and/or over-the-counter (OTC) products.…”